diff --git a/src/modules/colorPicker/ColorPickerUI/Mouse/MouseHook.cs b/src/modules/colorPicker/ColorPickerUI/Mouse/MouseHook.cs
index 80e0df7790..d75e57a024 100644
--- a/src/modules/colorPicker/ColorPickerUI/Mouse/MouseHook.cs
+++ b/src/modules/colorPicker/ColorPickerUI/Mouse/MouseHook.cs
@@ -114,6 +114,7 @@ namespace ColorPicker.Mouse
                     {
                         MouseDevice mouseDev = InputManager.Current.PrimaryMouseDevice;
                         MouseWheel.Invoke(null, new MouseWheelEventArgs(mouseDev, Environment.TickCount, (int)mouseHookStruct.mouseData >> 16));
+                        return new IntPtr(-1);
                     }
                 }
             }