diff --git a/source/blender/src/space.c b/source/blender/src/space.c
index 3f69d10a5b1..3835a0df70e 100644
--- a/source/blender/src/space.c
+++ b/source/blender/src/space.c
@@ -1354,8 +1354,7 @@ static void winqreadview3dspace(ScrArea *sa, void *spacedata, BWinEvent *evt)
 					else if((G.qual==0) || (G.qual==LR_CTRLKEY)) {
 						mirrormenu();
 					}
-					if ( !(~G.qual & 
-						   (LR_SHIFTKEY | LR_ALTKEY | LR_CTRLKEY)) ) {
+					if ( G.qual == (LR_SHIFTKEY | LR_ALTKEY | LR_CTRLKEY) ) {
 						if(G.obedit->type==OB_MESH) select_non_manifold();
 					}
 				}