diff --git a/apps/shared/function_graph_controller.cpp b/apps/shared/function_graph_controller.cpp
index 7004faf0c..9c1887dec 100644
--- a/apps/shared/function_graph_controller.cpp
+++ b/apps/shared/function_graph_controller.cpp
@@ -153,7 +153,7 @@ int FunctionGraphController::numberOfCurves() const {
   return functionStore()->numberOfActiveFunctions();
 }
 
-void FunctionGraphController::interestingRanges(InteractiveCurveViewRange * range) const {
+void FunctionGraphController::interestingRanges(InteractiveCurveViewRange * range) {
   Poincare::Context * context = textFieldDelegateApp()->localContext();
   constexpr int maxLength = 10;
   float xMins[maxLength], xMaxs[maxLength], yMins[maxLength], yMaxs[maxLength];
diff --git a/apps/shared/function_graph_controller.h b/apps/shared/function_graph_controller.h
index 2f7c74723..c78086b96 100644
--- a/apps/shared/function_graph_controller.h
+++ b/apps/shared/function_graph_controller.h
@@ -17,7 +17,7 @@ public:
   void didBecomeFirstResponder() override;
   void viewWillAppear() override;
 
-  void interestingRanges(Shared::InteractiveCurveViewRange * range) const override;
+  void interestingRanges(Shared::InteractiveCurveViewRange * range) override;
 
 protected:
   float cursorTopMarginRatio() override { return 0.068f; }
diff --git a/apps/shared/interactive_curve_view_range_delegate.h b/apps/shared/interactive_curve_view_range_delegate.h
index 6dfb2c9a0..d09961b33 100644
--- a/apps/shared/interactive_curve_view_range_delegate.h
+++ b/apps/shared/interactive_curve_view_range_delegate.h
@@ -12,7 +12,7 @@ public:
   static constexpr float k_defaultXHalfRange = 10.0f;
   virtual float interestingXMin() const { return -k_defaultXHalfRange; }
   virtual bool defaultRangeIsNormalized() const { return false; }
-  virtual void interestingRanges(InteractiveCurveViewRange * range) const { assert(false); }
+  virtual void interestingRanges(InteractiveCurveViewRange * range) { assert(false); }
   virtual float addMargin(float x, float range, bool isVertical, bool isMin) = 0;
   virtual void updateZoomButtons() = 0;
 };