diff --git a/dlls/msdmo/tests/msdmo.c b/dlls/msdmo/tests/msdmo.c
index b1b2f544ceb..41e6d57d2eb 100644
--- a/dlls/msdmo/tests/msdmo.c
+++ b/dlls/msdmo/tests/msdmo.c
@@ -41,7 +41,6 @@ static const char *guid_to_string(const GUID *guid)
 static void test_DMOUnregister(void)
 {
     static char buffer[200];
-    static const WCHAR testdmoW[] = {'t','e','s','t','d','m','o',0};
     HRESULT hr;
 
     hr = DMOUnregister(&GUID_unknowndmo, &GUID_unknowncategory);
@@ -51,10 +50,10 @@ static void test_DMOUnregister(void)
     ok(hr == S_FALSE, "got 0x%08x\n", hr);
 
     /* can't register for all categories */
-    hr = DMORegister(testdmoW, &GUID_unknowndmo, &GUID_NULL, 0, 0, NULL, 0, NULL);
+    hr = DMORegister(L"testdmo", &GUID_unknowndmo, &GUID_NULL, 0, 0, NULL, 0, NULL);
     ok(hr == E_INVALIDARG, "got 0x%08x\n", hr);
 
-    hr = DMORegister(testdmoW, &GUID_unknowndmo, &GUID_unknowncategory, 0, 0, NULL, 0, NULL);
+    hr = DMORegister(L"testdmo", &GUID_unknowndmo, &GUID_unknowncategory, 0, 0, NULL, 0, NULL);
     if (hr != S_OK) {
         win_skip("Failed to register DMO. Probably user doesn't have persmissions to do so.\n");
         return;