diff --git a/wpa_supplicant/aidl/sta_network.cpp b/wpa_supplicant/aidl/sta_network.cpp
index bb3045c..2604d2e 100644
--- a/wpa_supplicant/aidl/sta_network.cpp
+++ b/wpa_supplicant/aidl/sta_network.cpp
@@ -2689,9 +2689,9 @@
 			FALLTHROUGH_INTENDED;
 		case TlsVersion::TLS_V1_1:
 			tlsFlags |= TLS_CONN_DISABLE_TLSv1_0;
-			FALLTHROUGH_INTENDED;
-		default:
 			break;
+		default:
+			return createStatus(SupplicantStatusCode::FAILURE_UNSUPPORTED);
 	}
 
 	generateTlsParams();