diff --git a/apps/graph/app.cpp b/apps/graph/app.cpp
index 36ad09e55..3dfa83842 100644
--- a/apps/graph/app.cpp
+++ b/apps/graph/app.cpp
@@ -72,7 +72,7 @@ InputViewController * App::inputViewController() {
   return &m_inputViewController;
 }
 
-char App::XNT() {
+CodePoint App::XNT() {
   return 'x';
 }
 
diff --git a/apps/graph/app.h b/apps/graph/app.h
index 52a73863c..0c27fe2de 100644
--- a/apps/graph/app.h
+++ b/apps/graph/app.h
@@ -34,7 +34,7 @@ public:
     return static_cast<App *>(Container::activeApp());
   }
   InputViewController * inputViewController() override;
-  char XNT() override;
+  CodePoint XNT() override;
   NestedMenuController * variableBoxForInputEventHandler(InputEventHandler * textInput) override;
   CartesianFunctionStore * functionStore() override { return static_cast<CartesianFunctionStore *>(Shared::FunctionApp::functionStore()); }
 private:
diff --git a/apps/sequence/app.cpp b/apps/sequence/app.cpp
index f6930fb4b..bce12ad8b 100644
--- a/apps/sequence/app.cpp
+++ b/apps/sequence/app.cpp
@@ -81,8 +81,4 @@ SequenceContext * App::localContext() {
   return &m_sequenceContext;
 }
 
-char App::XNT() {
-  return 'n';
-}
-
 }
diff --git a/apps/sequence/app.h b/apps/sequence/app.h
index ecfb28ab2..5fb0aacb0 100644
--- a/apps/sequence/app.h
+++ b/apps/sequence/app.h
@@ -39,7 +39,7 @@ public:
   InputViewController * inputViewController() override;
   // TODO: override variableBoxForInputEventHandler to lock sequence in the variable box once they appear there
   // NestedMenuController * variableBoxForInputEventHandler(InputEventHandler * textInput) override;
-  char XNT() override;
+  CodePoint XNT() override { return 'n'; }
   SequenceContext * localContext() override;
   SequenceStore * functionStore() override { return static_cast<SequenceStore *>(Shared::FunctionApp::functionStore()); }
 private:
diff --git a/apps/shared/text_field_delegate_app.cpp b/apps/shared/text_field_delegate_app.cpp
index 0279167ff..8420cc394 100644
--- a/apps/shared/text_field_delegate_app.cpp
+++ b/apps/shared/text_field_delegate_app.cpp
@@ -14,10 +14,6 @@ Context * TextFieldDelegateApp::localContext() {
   return AppsContainer::sharedAppsContainer()->globalContext();
 }
 
-char TextFieldDelegateApp::XNT() {
-  return 'x';
-}
-
 bool TextFieldDelegateApp::textFieldShouldFinishEditing(TextField * textField, Ion::Events::Event event) {
   return isFinishingEvent(event);
 }
diff --git a/apps/shared/text_field_delegate_app.h b/apps/shared/text_field_delegate_app.h
index 7b9ba14ab..c7341903b 100644
--- a/apps/shared/text_field_delegate_app.h
+++ b/apps/shared/text_field_delegate_app.h
@@ -14,7 +14,7 @@ class TextFieldDelegateApp : public InputEventHandlerDelegateApp, public TextFie
 public:
   virtual ~TextFieldDelegateApp() = default;
   virtual Poincare::Context * localContext();
-  virtual char XNT();
+  virtual CodePoint XNT() { return 'x'; }
   bool textFieldShouldFinishEditing(TextField * textField, Ion::Events::Event event) override;
   virtual bool textFieldDidReceiveEvent(TextField * textField, Ion::Events::Event event) override;
   bool isAcceptableText(const char * text);