diff --git a/apps/alternate_empty_nested_menu_controller.h b/apps/alternate_empty_nested_menu_controller.h
index 3397cf66d..d310b15b6 100644
--- a/apps/alternate_empty_nested_menu_controller.h
+++ b/apps/alternate_empty_nested_menu_controller.h
@@ -12,7 +12,7 @@ public:
   void viewDidDisappear() override;
 protected:
   virtual ViewController * emptyViewController() = 0;
-  virtual bool isDisplayingEmptyController() = 0;
+  bool isDisplayingEmptyController() { return StackViewController::depth() == 2; }
   bool displayEmptyControllerIfNeeded();
 };
 
diff --git a/apps/code/variable_box_controller.h b/apps/code/variable_box_controller.h
index 0537c7f62..18a2bf4ca 100644
--- a/apps/code/variable_box_controller.h
+++ b/apps/code/variable_box_controller.h
@@ -32,7 +32,6 @@ public:
 
   //AlternateEmptyNestedMenuController
   ViewController * emptyViewController() override { return &m_variableBoxEmptyController; }
-  bool isDisplayingEmptyController() override { return StackViewController::depth() == 2; } //TODO LEA factorize with math toolbox
 
   /* VariableBoxController */
   void loadFunctionsAndVariables(int scriptIndex, const char * textToAutocomplete, int textToAutocompleteLength);
diff --git a/apps/math_variable_box_controller.h b/apps/math_variable_box_controller.h
index 25bb29703..8e6052a11 100644
--- a/apps/math_variable_box_controller.h
+++ b/apps/math_variable_box_controller.h
@@ -47,7 +47,6 @@ private:
   const char * extension() const;
   Ion::Storage::Record recordAtIndex(int rowIndex);
   ViewController * emptyViewController() override;
-  bool isDisplayingEmptyController() override { return StackViewController::depth() == 2; }
   void resetMemoization();
   void destroyRecordAtRowIndex(int rowIndex);
   Page m_currentPage;