Index: src/ch/DirTreeCtrl.cpp
===================================================================
diff -u -N -rb26ced3298e3e7e51d91f3ac70b56746786da83b -r3921d82d9605d98b2281f3f42d9f9c8385b89a3e
--- src/ch/DirTreeCtrl.cpp	(.../DirTreeCtrl.cpp)	(revision b26ced3298e3e7e51d91f3ac70b56746786da83b)
+++ src/ch/DirTreeCtrl.cpp	(.../DirTreeCtrl.cpp)	(revision 3921d82d9605d98b2281f3f42d9f9c8385b89a3e)
@@ -720,7 +720,7 @@
 
 	// get interface
 	IQueryInfo *pqi;
-	if (psid->lpsfParent->GetUIObjectOf(this->GetSafeHwnd(), 1, (const struct _ITEMIDLIST**)&psid->lpiidlRelative, IID_IQueryInfo, 0, (void**)&pqi) != NOERROR)
+	if (psid->lpsfParent->GetUIObjectOf(this->GetSafeHwnd(), 1, (const struct _ITEMIDLIST**)&psid->lpiidlRelative, IID_IQueryInfo, nullptr, (void**)&pqi) != NOERROR)
 		return false;
 
 	// get tip