diff --git a/dlls/dmcompos/tests/dmcompos.c b/dlls/dmcompos/tests/dmcompos.c
index 7063e99acdd..d23f5d6dae6 100644
--- a/dlls/dmcompos/tests/dmcompos.c
+++ b/dlls/dmcompos/tests/dmcompos.c
@@ -543,6 +543,7 @@ static void test_parsedescriptor(void)
     hr = IDirectMusicObject_ParseDescriptor(dmo, stream, &desc);
     ok(hr == DMUS_E_CHUNKNOTFOUND,
             "ParseDescriptor failed: %08x, expected DMUS_E_CHUNKNOTFOUND\n", hr);
+    IStream_Release(stream);
 
     /* All desc chunks, only DMUS_OBJ_OBJECT and DMUS_OBJ_CLASS supported */
     stream = gen_riff_stream(alldesc);