diff --git a/apps/i18n.h b/apps/i18n.h
index 0a40b43f1..13d28447a 100644
--- a/apps/i18n.h
+++ b/apps/i18n.h
@@ -41,7 +41,7 @@ namespace I18n {
     Product,
     ComplexAbsoluteValue,
     Agument,
-    ReelPart,
+    RealPart,
     ImaginaryPart,
     Conjugate,
     Combination,
diff --git a/apps/math_toolbox.cpp b/apps/math_toolbox.cpp
index ea120c032..53fa83839 100644
--- a/apps/math_toolbox.cpp
+++ b/apps/math_toolbox.cpp
@@ -8,7 +8,7 @@
  * subtree, the edited text is set at I18n::Message::Default. */
 
 const ToolboxNode calculChildren[4] = {ToolboxNode(I18n::Message::DiffCommandWithArg, I18n::Message::DerivateNumber, I18n::Message::DiffCommand), ToolboxNode(I18n::Message::IntCommandWithArg, I18n::Message::Integral, I18n::Message::IntCommand), ToolboxNode(I18n::Message::SumCommandWithArg, I18n::Message::Sum, I18n::Message::SumCommand), ToolboxNode(I18n::Message::ProductCommandWithArg, I18n::Message::Product, I18n::Message::ProductCommand)};
-const ToolboxNode complexChildren[5] = {ToolboxNode(I18n::Message::AbsCommandWithArg, I18n::Message::ComplexAbsoluteValue, I18n::Message::AbsCommand), ToolboxNode(I18n::Message::ArgCommandWithArg, I18n::Message::Agument, I18n::Message::ArgCommand), ToolboxNode(I18n::Message::ReCommandWithArg, I18n::Message::ReelPart, I18n::Message::ReCommand), ToolboxNode(I18n::Message::ImCommandWithArg, I18n::Message::ImaginaryPart, I18n::Message::ImCommand), ToolboxNode(I18n::Message::ConjCommandWithArg, I18n::Message::Conjugate, I18n::Message::ConjCommand)};
+const ToolboxNode complexChildren[5] = {ToolboxNode(I18n::Message::AbsCommandWithArg, I18n::Message::ComplexAbsoluteValue, I18n::Message::AbsCommand), ToolboxNode(I18n::Message::ArgCommandWithArg, I18n::Message::Agument, I18n::Message::ArgCommand), ToolboxNode(I18n::Message::ReCommandWithArg, I18n::Message::RealPart, I18n::Message::ReCommand), ToolboxNode(I18n::Message::ImCommandWithArg, I18n::Message::ImaginaryPart, I18n::Message::ImCommand), ToolboxNode(I18n::Message::ConjCommandWithArg, I18n::Message::Conjugate, I18n::Message::ConjCommand)};
 const ToolboxNode probabilityChildren[2] = {ToolboxNode(I18n::Message::BinomialCommandWithArg, I18n::Message::Combination, I18n::Message::BinomialCommand), ToolboxNode(I18n::Message::PermuteCommandWithArg, I18n::Message::Permutation, I18n::Message::PermuteCommand)};
 const ToolboxNode arithmeticChildren[4] = {ToolboxNode(I18n::Message::GcdCommandWithArg, I18n::Message::GreatCommonDivisor, I18n::Message::GcdCommand),ToolboxNode(I18n::Message::LcmCommandWithArg, I18n::Message::LeastCommonMultiple, I18n::Message::LcmCommand), ToolboxNode(I18n::Message::RemCommandWithArg, I18n::Message::Remainder, I18n::Message::RemCommand), ToolboxNode(I18n::Message::QuoCommandWithArg, I18n::Message::Quotient, I18n::Message::QuoCommand)};
 #if MATRICES_ARE_DEFINED
diff --git a/poincare/Makefile b/poincare/Makefile
index 4a86645b6..50ba8e35f 100644
--- a/poincare/Makefile
+++ b/poincare/Makefile
@@ -64,7 +64,7 @@ objs += $(addprefix poincare/src/,\
   prediction_interval.o\
   preferences.o\
   product.o\
-  reel_part.o\
+  real_part.o\
   round.o\
   sequence.o\
   sine.o\
diff --git a/poincare/include/poincare.h b/poincare/include/poincare.h
index 2c6c768ba..49bf8ff68 100644
--- a/poincare/include/poincare.h
+++ b/poincare/include/poincare.h
@@ -57,7 +57,7 @@
 #include <poincare/prediction_interval.h>
 #include <poincare/preferences.h>
 #include <poincare/product.h>
-#include <poincare/reel_part.h>
+#include <poincare/real_part.h>
 #include <poincare/round.h>
 #include <poincare/sine.h>
 #include <poincare/square_root.h>
diff --git a/poincare/include/poincare/expression.h b/poincare/include/poincare/expression.h
index 848d790eb..863cccd9d 100644
--- a/poincare/include/poincare/expression.h
+++ b/poincare/include/poincare/expression.h
@@ -35,7 +35,7 @@ public:
     AbsoluteValue,
     Factorial,
     ImaginaryPart,
-    ReelPart,
+    RealPart,
     ComplexArgument,
     Conjugate,
     Logarithm,
diff --git a/poincare/include/poincare/reel_part.h b/poincare/include/poincare/real_part.h
similarity index 95%
rename from poincare/include/poincare/reel_part.h
rename to poincare/include/poincare/real_part.h
index 10a6d7b56..4d83f50ab 100644
--- a/poincare/include/poincare/reel_part.h
+++ b/poincare/include/poincare/real_part.h
@@ -7,7 +7,7 @@
 
 namespace Poincare {
 
-class ReelPart : public StaticHierarchy<1>  {
+class RealPart : public StaticHierarchy<1>  {
   using StaticHierarchy<1>::StaticHierarchy;
 public:
   Type type() const override;
diff --git a/poincare/src/expression_lexer.l b/poincare/src/expression_lexer.l
index 8d637bdf3..06e26cba3 100644
--- a/poincare/src/expression_lexer.l
+++ b/poincare/src/expression_lexer.l
@@ -124,7 +124,7 @@ prediction95 { poincare_expression_yylval.expression = new PredictionInterval();
 prediction { poincare_expression_yylval.expression = new ConfidenceInterval(); return FUNCTION; }
 product { poincare_expression_yylval.expression = new Product(); return FUNCTION; }
 quo { poincare_expression_yylval.expression = new DivisionQuotient(); return FUNCTION; }
-re { poincare_expression_yylval.expression = new ReelPart(); return FUNCTION; }
+re { poincare_expression_yylval.expression = new RealPart(); return FUNCTION; }
 rem { poincare_expression_yylval.expression = new DivisionRemainder(); return FUNCTION; }
 root { poincare_expression_yylval.expression = new NthRoot(); return FUNCTION; }
 round { poincare_expression_yylval.expression = new Round(); return FUNCTION; }
diff --git a/poincare/src/real_part.cpp b/poincare/src/real_part.cpp
new file mode 100644
index 000000000..791bbe28c
--- /dev/null
+++ b/poincare/src/real_part.cpp
@@ -0,0 +1,27 @@
+#include <poincare/real_part.h>
+#include <poincare/complex.h>
+
+extern "C" {
+#include <assert.h>
+}
+#include <cmath>
+
+namespace Poincare {
+
+Expression::Type RealPart::type() const {
+  return Type::RealPart;
+}
+
+Expression * RealPart::clone() const {
+  RealPart * a = new RealPart(m_operands, true);
+  return a;
+}
+
+template<typename T>
+Complex<T> RealPart::computeOnComplex(const Complex<T> c, AngleUnit angleUnit) {
+  return Complex<T>::Float(c.a());
+}
+
+}
+
+
diff --git a/poincare/src/reel_part.cpp b/poincare/src/reel_part.cpp
deleted file mode 100644
index 39a8e5bcb..000000000
--- a/poincare/src/reel_part.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-#include <poincare/reel_part.h>
-#include <poincare/complex.h>
-
-extern "C" {
-#include <assert.h>
-}
-#include <cmath>
-
-namespace Poincare {
-
-Expression::Type ReelPart::type() const {
-  return Type::ReelPart;
-}
-
-Expression * ReelPart::clone() const {
-  ReelPart * a = new ReelPart(m_operands, true);
-  return a;
-}
-
-template<typename T>
-Complex<T> ReelPart::computeOnComplex(const Complex<T> c, AngleUnit angleUnit) {
-  return Complex<T>::Float(c.a());
-}
-
-}
-
-
diff --git a/poincare/test/function.cpp b/poincare/test/function.cpp
index eb831bc93..14c5b018c 100644
--- a/poincare/test/function.cpp
+++ b/poincare/test/function.cpp
@@ -35,7 +35,7 @@ QUIZ_CASE(poincare_parse_function) {
   assert_parsed_expression_type("prediction95(0.1, 100)", Expression::Type::PredictionInterval);
   assert_parsed_expression_type("product(n, 4, 10)", Expression::Type::Product);
   assert_parsed_expression_type("quo(29, 10)", Expression::Type::DivisionQuotient);
-  assert_parsed_expression_type("re(2+I)", Expression::Type::ReelPart);
+  assert_parsed_expression_type("re(2+I)", Expression::Type::RealPart);
   assert_parsed_expression_type("rem(29, 10)", Expression::Type::DivisionRemainder);
   assert_parsed_expression_type("root(2,3)", Expression::Type::NthRoot);
   assert_parsed_expression_type("R(2)", Expression::Type::SquareRoot);