diff --git a/init/test_utils/include/init-test-utils/service_utils.h b/init/test_utils/include/init-test-utils/service_utils.h
index 3ec61d4..1b59c7b 100644
--- a/init/test_utils/include/init-test-utils/service_utils.h
+++ b/init/test_utils/include/init-test-utils/service_utils.h
@@ -25,7 +25,16 @@
 namespace android {
 namespace init {
 
-using ServiceInterfacesMap = std::map<std::string, std::set<android::FqInstance>>;
+// this is service name -> interface declaration
+//
+// So, for:
+//     service foo ..
+//         interface aidl baz
+//         interface android.hardware.foo@1.0 IFoo
+//
+// We have:
+//     foo -> { aidl/baz, android.hardware.foo@1.0/IFoo }
+using ServiceInterfacesMap = std::map<std::string, std::set<std::string>>;
 android::base::Result<ServiceInterfacesMap> GetOnDeviceServiceInterfacesMap();
 
 }  // namespace init
diff --git a/init/test_utils/service_utils.cpp b/init/test_utils/service_utils.cpp
index bc00702..ae68679 100644
--- a/init/test_utils/service_utils.cpp
+++ b/init/test_utils/service_utils.cpp
@@ -47,14 +47,7 @@
     for (const auto& service : service_list.services()) {
         // Create an entry for all services, including services that may not
         // have any declared interfaces.
-        result[service->name()] = std::set<android::FqInstance>();
-        for (const auto& intf : service->interfaces()) {
-            android::FqInstance fqInstance;
-            if (!fqInstance.setTo(intf)) {
-                return android::base::Error() << "Unable to parse interface: '" << intf << "'";
-            }
-            result[service->name()].insert(fqInstance);
-        }
+        result[service->name()] = service->interfaces();
     }
     return result;
 }