diff --git a/gdk/quartz/GdkQuartzWindow.c b/gdk/quartz/GdkQuartzWindow.c
index 06d11cf..c11924c 100644
--- a/gdk/quartz/GdkQuartzWindow.c
+++ b/gdk/quartz/GdkQuartzWindow.c
@@ -412,7 +412,7 @@

 -(BOOL)isInManualResize
 {
-  return inManualResize;
+  return inManualResize || inManualMove;
 }

 -(void)beginManualResize