diff --git a/app/display/display-types.h b/app/display/display-types.h
index 18c698f5bf..66ae14c337 100644
--- a/app/display/display-types.h
+++ b/app/display/display-types.h
@@ -26,6 +26,7 @@
 
 typedef struct _GimpCanvas            GimpCanvas;
 typedef struct _GimpCanvasItem        GimpCanvasItem;
+typedef struct _GimpCanvasGroup       GimpCanvasGroup;
 
 typedef struct _GimpDisplay           GimpDisplay;
 typedef struct _GimpDisplayShell      GimpDisplayShell;
diff --git a/app/display/gimpcanvasgroup.h b/app/display/gimpcanvasgroup.h
index f0d10a46f0..06dc32b14c 100644
--- a/app/display/gimpcanvasgroup.h
+++ b/app/display/gimpcanvasgroup.h
@@ -33,7 +33,6 @@
 #define GIMP_CANVAS_GROUP_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CANVAS_GROUP, GimpCanvasGroupClass))
 
 
-typedef struct _GimpCanvasGroup      GimpCanvasGroup;
 typedef struct _GimpCanvasGroupClass GimpCanvasGroupClass;
 
 struct _GimpCanvasGroup