diff --git a/client/cmdhw.c b/client/cmdhw.c
index e287beaf6..98c29f69b 100644
--- a/client/cmdhw.c
+++ b/client/cmdhw.c
@@ -518,8 +518,8 @@ static int CmdConnect(const char *Cmd) {
                 cmdp += 2;
                 break;
             default:
-                cmdp++;
-                break;
+                usage_hw_connect();
+                return PM3_EINVARG;
         }
     }