diff --git a/apps/shared/storage_function.h b/apps/shared/storage_function.h
index 42b8ff800..d5b94c2f1 100644
--- a/apps/shared/storage_function.h
+++ b/apps/shared/storage_function.h
@@ -9,6 +9,7 @@ namespace Shared {
 
 class StorageFunction : public StorageExpressionModel {
 public:
+  constexpr static int k_maxNameWithArgumentSize = Poincare::SymbolAbstract::k_maxNameSize + 4; /* Function name and null-terminating char + "(x)" */;
   // Constructors
   StorageFunction(Ion::Storage::Record record) : StorageExpressionModel(record){}
 
diff --git a/apps/shared/storage_values_function_parameter_controller.cpp b/apps/shared/storage_values_function_parameter_controller.cpp
index e82a35a3c..f7152bc09 100644
--- a/apps/shared/storage_values_function_parameter_controller.cpp
+++ b/apps/shared/storage_values_function_parameter_controller.cpp
@@ -4,7 +4,7 @@
 namespace Shared {
 
 const char * StorageValuesFunctionParameterController::title() {
-  m_function->nameWithArgument(m_pageTitle, k_maxNumberOfCharsInTitle, m_symbol);
+  m_function->nameWithArgument(m_pageTitle, StorageFunction::k_maxNameWithArgumentSize, m_symbol);
   return m_pageTitle;
 }
 
diff --git a/apps/shared/storage_values_function_parameter_controller.h b/apps/shared/storage_values_function_parameter_controller.h
index efc549449..2063d1b84 100644
--- a/apps/shared/storage_values_function_parameter_controller.h
+++ b/apps/shared/storage_values_function_parameter_controller.h
@@ -32,8 +32,7 @@ protected:
   MessageTableCellWithChevron m_copyColumn;
   SelectableTableView m_selectableTableView;
 private:
-  constexpr static int k_maxNumberOfCharsInTitle = Poincare::SymbolAbstract::k_maxNameSize + 4; /* Function name and null-terminating char + "(x)" */;
-  char m_pageTitle[k_maxNumberOfCharsInTitle];
+  char m_pageTitle[StorageFunction::k_maxNameWithArgumentSize];
   StorageFunction * m_function;
   char m_symbol;
 };