diff --git a/gdk/macos/GdkMacosWindow.c b/gdk/macos/GdkMacosWindow.c
index 8dda79ab4d..a30d1b71a1 100644
--- a/gdk/macos/GdkMacosWindow.c
+++ b/gdk/macos/GdkMacosWindow.c
@@ -310,7 +310,7 @@ typedef NSString *CALayerContentsGravity;
 
 -(BOOL)canBecomeKeyWindow
 {
-  return GDK_IS_TOPLEVEL (gdk_surface);
+  return GDK_IS_TOPLEVEL (gdk_surface) || GDK_IS_POPUP (gdk_surface);
 }
 
 -(void)showAndMakeKey:(BOOL)makeKey