diff --git a/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test.cpp b/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test.cpp
index 4d952e4..0b56957 100644
--- a/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test.cpp
+++ b/wifi/supplicant/1.1/vts/functional/supplicant_hidl_test.cpp
@@ -33,6 +33,7 @@
 using ::android::hardware::wifi::supplicant::V1_0::SupplicantStatusCode;
 using ::android::hardware::wifi::supplicant::V1_0::IfaceType;
 using ::android::hardware::wifi::supplicant::V1_1::ISupplicant;
+using ::android::hardware::wifi::V1_0::IWifi;
 using ::android::sp;
 
 class SupplicantHidlTest : public SupplicantHidlTestBaseV1_1 {
@@ -139,20 +140,11 @@
  */
 TEST_P(SupplicantHidlTest, Terminate) { supplicant_->terminate(); }
 
-static std::vector<std::string> get_wifi_instances() {
-    std::vector<std::string> instances =
-        android::hardware::getAllHalInstanceNames(
-            android::hardware::wifi::V1_0::IWifi::descriptor);
-    // Also test when wifi instance is not set.
-    instances.push_back("");
-
-    return instances;
-}
-
 INSTANTIATE_TEST_CASE_P(
     PerInstance, SupplicantHidlTest,
     testing::Combine(
-        testing::ValuesIn(get_wifi_instances()),
+        testing::ValuesIn(
+            android::hardware::getAllHalInstanceNames(IWifi::descriptor)),
         testing::ValuesIn(android::hardware::getAllHalInstanceNames(
             android::hardware::wifi::supplicant::V1_1::ISupplicant::
                 descriptor))),