diff --git a/src/core/display.c b/src/core/display.c
index d6cc582e1..2e309ba93 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -1200,7 +1200,7 @@ meta_grab_op_is_moving (MetaGrabOp op)
   if (GRAB_OP_GET_BASE_TYPE (op) != META_GRAB_OP_WINDOW_BASE)
     return FALSE;
 
-  return (op & 0xF000) != 0;
+  return (op & 0xF000) == 0;
 }
 
 gboolean