diff --git a/dlls/hlink/extserv.c b/dlls/hlink/extserv.c
index c7a1b779d0f..0c12caa69aa 100644
--- a/dlls/hlink/extserv.c
+++ b/dlls/hlink/extserv.c
@@ -63,7 +63,7 @@ static HRESULT WINAPI ExtServUnk_QueryInterface(IUnknown *iface, REFIID riid, vo
     }
 
     if(*ppv) {
-        IUnknown_AddRef(EXTSERVUNK(This));
+        IUnknown_AddRef((IUnknown*)*ppv);
         return S_OK;
     }