diff --git a/poincare/include/poincare/absolute_value_layout.h b/poincare/include/poincare/absolute_value_layout.h
index f23b56737..0aa42cb75 100644
--- a/poincare/include/poincare/absolute_value_layout.h
+++ b/poincare/include/poincare/absolute_value_layout.h
@@ -16,7 +16,7 @@ public:
 
   // SerializationHelperInterface
   int serialize(char * buffer, int bufferSize, Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const override {
-    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, AbsoluteValue::s_functionHelper.name());
+    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, AbsoluteValue::s_functionHelper.name(), true);
   }
 
   // TreeNode
diff --git a/poincare/include/poincare/ceiling_layout.h b/poincare/include/poincare/ceiling_layout.h
index fe3377f5d..a0f553aeb 100644
--- a/poincare/include/poincare/ceiling_layout.h
+++ b/poincare/include/poincare/ceiling_layout.h
@@ -16,7 +16,7 @@ public:
   Type type() const override { return Type::CeilingLayout; }
 
   int serialize(char * buffer, int bufferSize, Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const override {
-    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, Ceiling::s_functionHelper.name());
+    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, Ceiling::s_functionHelper.name(), true);
   }
 
   // TreeNode
diff --git a/poincare/include/poincare/condensed_sum_layout.h b/poincare/include/poincare/condensed_sum_layout.h
index 688b78bc4..54cb6e636 100644
--- a/poincare/include/poincare/condensed_sum_layout.h
+++ b/poincare/include/poincare/condensed_sum_layout.h
@@ -23,7 +23,7 @@ public:
   void moveCursorUp(LayoutCursor * cursor, bool * shouldRecomputeLayout, bool equivalentPositionVisited = false) override { assert(false); }
   void moveCursorDown(LayoutCursor * cursor, bool * shouldRecomputeLayout, bool equivalentPositionVisited = false) override { assert(false); }
   int serialize(char * buffer, int bufferSize, Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const override {
-    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, Sum::s_functionHelper.name());
+    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, Sum::s_functionHelper.name(), true);
   }
 
   LayoutNode * layoutToPointWhenInserting(Expression * correspondingExpression) override {
diff --git a/poincare/include/poincare/floor_layout.h b/poincare/include/poincare/floor_layout.h
index 61e07f26f..f3f0cab60 100644
--- a/poincare/include/poincare/floor_layout.h
+++ b/poincare/include/poincare/floor_layout.h
@@ -16,7 +16,7 @@ public:
   Type type() const override { return Type::FloorLayout; }
 
   int serialize(char * buffer, int bufferSize, Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const override {
-    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, Floor::s_functionHelper.name());
+    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, Floor::s_functionHelper.name(), true);
   }
 
   // TreeNode
diff --git a/poincare/include/poincare/serialization_helper.h b/poincare/include/poincare/serialization_helper.h
index 29d47aa91..4ee86219b 100644
--- a/poincare/include/poincare/serialization_helper.h
+++ b/poincare/include/poincare/serialization_helper.h
@@ -24,6 +24,11 @@ namespace SerializationHelper {
       int firstChildIndex = 0,
       int lastChildIndex = -1);
 
+  /* needsSystemParentheses add System parentheses wrapping the layout children.
+   * It is used when serializing special layouts to avoid creating parsable
+   * string from misformed layout. For instance, we don't want to parse:
+   * |2)(3|, so we serialize it in "abs({2)(3})" where {} are System parentheses
+   * instead of "abs(2)(3)". */
   int Prefix(
       const TreeNode * node,
       char * buffer,
@@ -31,6 +36,7 @@ namespace SerializationHelper {
       Preferences::PrintFloatMode floatDisplayMode,
       int numberOfDigits,
       const char * operatorName,
+      bool needsSystemParentheses = false,
       int lastChildIndex = -1);
 
   int SerializeChild(
diff --git a/poincare/src/binomial_coefficient_layout.cpp b/poincare/src/binomial_coefficient_layout.cpp
index c04b5c675..839d2cd55 100644
--- a/poincare/src/binomial_coefficient_layout.cpp
+++ b/poincare/src/binomial_coefficient_layout.cpp
@@ -74,7 +74,7 @@ void BinomialCoefficientLayoutNode::moveCursorDown(LayoutCursor * cursor, bool *
 }
 
 int BinomialCoefficientLayoutNode::serialize(char * buffer, int bufferSize, Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const {
-  return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, BinomialCoefficient::s_functionHelper.name());
+  return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, BinomialCoefficient::s_functionHelper.name(), true);
 }
 
 KDSize BinomialCoefficientLayoutNode::computeSize() {
diff --git a/poincare/src/conjugate_layout.cpp b/poincare/src/conjugate_layout.cpp
index ac636dcad..63e0b2432 100644
--- a/poincare/src/conjugate_layout.cpp
+++ b/poincare/src/conjugate_layout.cpp
@@ -52,7 +52,7 @@ void ConjugateLayoutNode::moveCursorRight(LayoutCursor * cursor, bool * shouldRe
 }
 
 int ConjugateLayoutNode::serialize(char * buffer, int bufferSize, Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const {
-  return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, Conjugate::s_functionHelper.name());
+  return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, Conjugate::s_functionHelper.name(), true);
 }
 
 KDSize ConjugateLayoutNode::computeSize() {
diff --git a/poincare/src/nth_root_layout.cpp b/poincare/src/nth_root_layout.cpp
index 7eb8b2e04..52a32be93 100644
--- a/poincare/src/nth_root_layout.cpp
+++ b/poincare/src/nth_root_layout.cpp
@@ -152,13 +152,13 @@ int NthRootLayoutNode::serialize(char * buffer, int bufferSize, Preferences::Pri
     assert((const_cast<NthRootLayoutNode *>(this))->indexLayout());
     if ((const_cast<NthRootLayoutNode *>(this))->indexLayout()->isEmpty()) {
       // Case: root(x,empty): Write "'SquareRootSymbol'('radicandLayout')"
-      return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, SquareRoot::s_functionHelper.name(), 0);
+      return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, SquareRoot::s_functionHelper.name(), true, 0);
     }
     // Case: root(x,n)
-    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, NthRoot::s_functionHelper.name());
+    return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, NthRoot::s_functionHelper.name(), true);
   }
   // Case: squareRoot(x)
-  return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, SquareRoot::s_functionHelper.name());
+  return SerializationHelper::Prefix(this, buffer, bufferSize, floatDisplayMode, numberOfSignificantDigits, SquareRoot::s_functionHelper.name(), true);
 }
 
 KDSize NthRootLayoutNode::computeSize() {
diff --git a/poincare/src/serialization_helper.cpp b/poincare/src/serialization_helper.cpp
index 84896271e..4991226e4 100644
--- a/poincare/src/serialization_helper.cpp
+++ b/poincare/src/serialization_helper.cpp
@@ -68,6 +68,7 @@ int InfixPrefix(
     Preferences::PrintFloatMode floatDisplayMode,
     int numberOfDigits,
     const char * operatorName,
+    bool needsSystemParentheses,
     int firstChildIndex,
     int lastChildIndex)
 {
@@ -95,10 +96,13 @@ int InfixPrefix(
     if (numberOfChar >= bufferSize-1) {
       return bufferSize-1;
     }
-    // Add the opening system parenthesis
-    numberOfChar += UTF8Decoder::CodePointToChars(UCodePointLeftSystemParenthesis, buffer+numberOfChar, bufferSize - numberOfChar);
-    if (numberOfChar >= bufferSize-1) {
-      return bufferSize-1;
+
+    if (needsSystemParentheses) {
+      // Add the opening system parenthesis
+      numberOfChar += UTF8Decoder::CodePointToChars(UCodePointLeftSystemParenthesis, buffer+numberOfChar, bufferSize - numberOfChar);
+      if (numberOfChar >= bufferSize-1) {
+        return bufferSize-1;
+      }
     }
   }
 
@@ -133,11 +137,14 @@ int InfixPrefix(
   }
 
   if (prefix) {
-    // Add the closing system parenthesis
-    numberOfChar += UTF8Decoder::CodePointToChars(UCodePointRightSystemParenthesis, buffer+numberOfChar, bufferSize - numberOfChar);
-    if (numberOfChar >= bufferSize-1) {
-      return bufferSize-1;
+    if (needsSystemParentheses) {
+      // Add the closing system parenthesis
+      numberOfChar += UTF8Decoder::CodePointToChars(UCodePointRightSystemParenthesis, buffer+numberOfChar, bufferSize - numberOfChar);
+      if (numberOfChar >= bufferSize-1) {
+        return bufferSize-1;
+      }
     }
+
     // Add the closing parenthesis
     numberOfChar += UTF8Decoder::CodePointToChars(')', buffer+numberOfChar, bufferSize - numberOfChar);
     if (numberOfChar >= bufferSize-1) {
@@ -159,7 +166,7 @@ int SerializationHelper::Infix(
     int firstChildIndex,
     int lastChildIndex)
 {
-  return InfixPrefix(false, node, buffer, bufferSize, floatDisplayMode, numberOfDigits, operatorName, firstChildIndex, lastChildIndex);
+  return InfixPrefix(false, node, buffer, bufferSize, floatDisplayMode, numberOfDigits, operatorName, false, firstChildIndex, lastChildIndex);
 }
 
 int SerializationHelper::Prefix(
@@ -169,9 +176,10 @@ int SerializationHelper::Prefix(
     Preferences::PrintFloatMode floatDisplayMode,
     int numberOfDigits,
     const char * operatorName,
+    bool needsSystemParentheses,
     int lastChildIndex)
 {
-  return InfixPrefix(true, node, buffer, bufferSize, floatDisplayMode, numberOfDigits, operatorName, 0, lastChildIndex);
+  return InfixPrefix(true, node, buffer, bufferSize, floatDisplayMode, numberOfDigits, operatorName, needsSystemParentheses, 0, lastChildIndex);
 }
 
 int SerializationHelper::CodePoint(char * buffer, int bufferSize, class CodePoint c) {