diff --git a/src/widgets/editor/pixels_movement.cpp b/src/widgets/editor/pixels_movement.cpp
index 8e7a94818..9348afa86 100644
--- a/src/widgets/editor/pixels_movement.cpp
+++ b/src/widgets/editor/pixels_movement.cpp
@@ -363,7 +363,7 @@ void PixelsMovement::dropImage()
   }
 }
 
-bool PixelsMovement::isDragging()
+bool PixelsMovement::isDragging() const
 {
   return m_isDragging;
 }
diff --git a/src/widgets/editor/pixels_movement.h b/src/widgets/editor/pixels_movement.h
index 9cc8984c4..c0fcfd7c3 100644
--- a/src/widgets/editor/pixels_movement.h
+++ b/src/widgets/editor/pixels_movement.h
@@ -57,7 +57,7 @@ public:
 
   void dropImageTemporarily();
   void dropImage();
-  bool isDragging();
+  bool isDragging() const;
 
   gfx::Rect getImageBounds();