diff --git a/reactos/lib/atl/atlbase.h b/reactos/lib/atl/atlbase.h
index b2f6ae1f3df..232507bcdc5 100644
--- a/reactos/lib/atl/atlbase.h
+++ b/reactos/lib/atl/atlbase.h
@@ -595,6 +595,7 @@ public:
 		ATLASSERT(ppv != NULL);
 		if (ppv == NULL)
 			return E_POINTER;
+		*ppv = NULL;
 		hResult = S_OK;
 		if (m_pObjMap != NULL)
 		{