diff --git a/dlls/ole32/tests/marshal.c b/dlls/ole32/tests/marshal.c
index 3c8281a3dff..9a30df48e67 100644
--- a/dlls/ole32/tests/marshal.c
+++ b/dlls/ole32/tests/marshal.c
@@ -2136,6 +2136,9 @@ static DWORD CALLBACK get_global_interface_proc(LPVOID pv)
 	CoInitialize(NULL);
 	hr = IGlobalInterfaceTable_GetInterfaceFromGlobal(params->git, params->cookie, &IID_IClassFactory, (void **)&cf);
 	ok_ole_success(hr, IGlobalInterfaceTable_GetInterfaceFromGlobal);
+
+	IGlobalInterfaceTable_Release(params->git);
+
 	CoUninitialize();
 
 	return hr;