diff --git a/tests/hwsim/test_hapd_ctrl.py b/tests/hwsim/test_hapd_ctrl.py
index c3412cc4c..95ef451a4 100644
--- a/tests/hwsim/test_hapd_ctrl.py
+++ b/tests/hwsim/test_hapd_ctrl.py
@@ -67,6 +67,8 @@ def test_hapd_ctrl_sta(dev, apdev):
         raise Exception("Unexpected STA failure")
     if "FAIL" not in hapd.request("STA " + addr + " eapol"):
         raise Exception("Unexpected STA-eapol success")
+    if "FAIL" not in hapd.request("STA " + addr + " foo"):
+        raise Exception("Unexpected STA-foo success")
     if "FAIL" not in hapd.request("STA 00:11:22:33:44"):
         raise Exception("Unexpected STA success")
     if "FAIL" not in hapd.request("STA 00:11:22:33:44:55"):