diff --git a/src/client.c b/src/client.c
index ca45f3f..7261ca9 100644
--- a/src/client.c
+++ b/src/client.c
@@ -869,10 +869,8 @@ _apply_rule(struct client *c, struct rule *r)
      if(r->flags & RULE_TAB)
           W->flags ^= WMFS_TABNOC; /* < can be disable by client_tab_next_opened */
 
-     /* TODO
      if(r->flags & RULE_IGNORE_TAG)
-     {}
-     */
+          c->flags |= CLIENT_IGNORE_TAG;
 
      c->flags |= CLIENT_RULED;
 }