diff --git a/src/Calculator/Controls/MathRichEditBox.h b/src/Calculator/Controls/MathRichEditBox.h
index 1b58e9a6..bfeb72db 100644
--- a/src/Calculator/Controls/MathRichEditBox.h
+++ b/src/Calculator/Controls/MathRichEditBox.h
@@ -67,8 +67,8 @@ namespace CalculatorApp
             Platform::String ^ GetMathTextProperty();
             void SetMathTextProperty(Platform::String ^ newValue);
 
-            void OnLosingFocus(Windows::UI::Xaml::UIElement ^ sender, Windows::UI::Xaml::Input::LosingFocusEventArgs ^ args);
             void OnGotFocus(Platform::Object ^ sender, Windows::UI::Xaml::RoutedEventArgs ^ e);
+            void OnLosingFocus(Windows::UI::Xaml::UIElement ^ sender, Windows::UI::Xaml::Input::LosingFocusEventArgs ^ args);
             void OnKeyUp(Platform::Object ^ sender, Windows::UI::Xaml::Input::KeyRoutedEventArgs ^ e);
         };
     }