diff --git a/gdk/gdkinternals.h b/gdk/gdkinternals.h
index a883589eff..419a0e6e8b 100644
--- a/gdk/gdkinternals.h
+++ b/gdk/gdkinternals.h
@@ -359,6 +359,8 @@ typedef enum
   GDK_SURFACE_TYPE_HINT_DND
 } GdkSurfaceTypeHint;
 
+typedef struct _GdkGeometry GdkGeometry;
+
 struct _GdkGeometry
 {
   gint min_width;
diff --git a/gdk/gdktypes.h b/gdk/gdktypes.h
index 1fed3ac8ca..daa798a45d 100644
--- a/gdk/gdktypes.h
+++ b/gdk/gdktypes.h
@@ -113,8 +113,6 @@ typedef struct _GdkAppLaunchContext   GdkAppLaunchContext;
 typedef struct _GdkSeat               GdkSeat;
 typedef struct _GdkSnapshot           GdkSnapshot;
 
-typedef struct _GdkGeometry           GdkGeometry;
-
 typedef struct _GdkDrawingContext     GdkDrawingContext;
 typedef struct _GdkDrawContext        GdkDrawContext;
 typedef struct _GdkCairoContext       GdkCairoContext;