diff --git a/apps/sequence/cache_context.cpp b/apps/sequence/cache_context.cpp
index cda8b28c7..47c6f5064 100644
--- a/apps/sequence/cache_context.cpp
+++ b/apps/sequence/cache_context.cpp
@@ -7,7 +7,7 @@ namespace Sequence {
 
 template<typename T>
 CacheContext<T>::CacheContext(Context * parentContext) :
-  VariableContext<T>('n', parentContext),
+  VariableContext<T>("n", parentContext),
   m_values{{NAN, NAN},
     {NAN, NAN}}
 {
diff --git a/poincare/include/poincare/variable_context.h b/poincare/include/poincare/variable_context.h
index 10ad9f0a3..616cb2912 100644
--- a/poincare/include/poincare/variable_context.h
+++ b/poincare/include/poincare/variable_context.h
@@ -9,7 +9,7 @@ namespace Poincare {
 template<typename T>
 class VariableContext : public Context {
 public:
-  VariableContext(char name, Context * parentContext = nullptr);
+  VariableContext(const char * name, Context * parentContext = nullptr);
   void setApproximationForVariable(T value);
 
   // Context
@@ -17,7 +17,7 @@ public:
   const Expression expressionForSymbol(const Symbol & symbol) override;
 
 private:
-  char m_name;
+  const char * m_name;
   Float<T> m_value;
   Context * m_parentContext;
 };
diff --git a/poincare/src/sequence.cpp b/poincare/src/sequence.cpp
index 85ca379ca..851cdb08c 100644
--- a/poincare/src/sequence.cpp
+++ b/poincare/src/sequence.cpp
@@ -24,7 +24,7 @@ Evaluation<T> SequenceNode::templatedApproximate(Context& context, Preferences::
   if (std::isnan(start) || std::isnan(end) || start != (int)start || end != (int)end || end - start > k_maxNumberOfSteps) {
     return Complex<T>::Undefined();
   }
-  VariableContext<T> nContext = VariableContext<T>('n', &context);
+  VariableContext<T> nContext = VariableContext<T>("n", &context);
   Evaluation<T> result = Complex<T>((T)emptySequenceValue());
   for (int i = (int)start; i <= (int)end; i++) {
     if (Expression::shouldStopProcessing()) {
diff --git a/poincare/src/variable_context.cpp b/poincare/src/variable_context.cpp
index b598879eb..12dcf4021 100644
--- a/poincare/src/variable_context.cpp
+++ b/poincare/src/variable_context.cpp
@@ -7,7 +7,7 @@
 namespace Poincare {
 
 template<typename T>
-VariableContext<T>::VariableContext(char name, Context * parentContext) :
+VariableContext<T>::VariableContext(const char * name, Context * parentContext) :
   m_name(name),
   m_value(Float<T>(NAN)),
   m_parentContext(parentContext)
@@ -21,7 +21,7 @@ void VariableContext<T>::setApproximationForVariable(T value) {
 
 template<typename T>
 void VariableContext<T>::setExpressionForSymbolName(const Expression & expression, const Symbol & symbol, Context & context) {
-  if (symbol.name() == m_name) {
+  if (strcmp(symbol.name(), m_name) == 0) {
     if (expression.isUninitialized()) {
       return;
     }
@@ -33,7 +33,7 @@ void VariableContext<T>::setExpressionForSymbolName(const Expression & expressio
 
 template<typename T>
 const Expression VariableContext<T>::expressionForSymbol(const Symbol & symbol) {
-  if (symbol.name() == m_name) {
+  if (strcmp(symbol.name(), m_name) == 0) {
     return m_value;
   } else {
     return m_parentContext->expressionForSymbol(symbol);