diff --git a/src/wmfs.h b/src/wmfs.h
index 34511fb..aec91ae 100644
--- a/src/wmfs.h
+++ b/src/wmfs.h
@@ -216,6 +216,7 @@ struct client
 #define CLIENT_FREE          0x1000
 #define CLIENT_TILED         0x2000
 #define CLIENT_MOUSE         0x4000
+#define CLIENT_IGNORE_TAG			 0x8000
      Flags flags;
      Window win, frame, tmp;
      SLIST_ENTRY(client) next;   /* Global list */