diff --git a/dlls/wbemprox/tests/services.c b/dlls/wbemprox/tests/services.c
index da985de01fa..5ad73e7a8ec 100644
--- a/dlls/wbemprox/tests/services.c
+++ b/dlls/wbemprox/tests/services.c
@@ -109,8 +109,8 @@ static void test_IWbemLocator(void)
         { L"\\\\.", WBEM_E_INVALID_NAMESPACE },
         { L"\\\\.\\", WBEM_E_INVALID_NAMESPACE, FALSE, WBEM_E_INVALID_PARAMETER },
         { L"\\ROOT", WBEM_E_INVALID_NAMESPACE },
-        { L"\\\\ROOT", 0x800706ba, TRUE },
-        { L"\\\\.ROOT", 0x800706ba, TRUE },
+        { L"\\\\ROOT", __HRESULT_FROM_WIN32(RPC_S_SERVER_UNAVAILABLE), TRUE },
+        { L"\\\\.ROOT", __HRESULT_FROM_WIN32(RPC_S_SERVER_UNAVAILABLE), TRUE },
         { L"\\\\.\\NONE", WBEM_E_INVALID_NAMESPACE },
         { L"\\\\.\\ROOT", S_OK },
         { L"\\\\\\.\\ROOT", WBEM_E_INVALID_PARAMETER },