diff --git a/dll/shellext/fontext/CFontExt.cpp b/dll/shellext/fontext/CFontExt.cpp
index 298c6b84c9f..de502a43fdb 100644
--- a/dll/shellext/fontext/CFontExt.cpp
+++ b/dll/shellext/fontext/CFontExt.cpp
@@ -291,7 +291,7 @@ STDMETHODIMP CFontExt::GetUIObjectOf(HWND hwndOwner, UINT cidl, PCUITEMID_CHILD_
 STDMETHODIMP CFontExt::GetDisplayNameOf(PCUITEMID_CHILD pidl, DWORD dwFlags, LPSTRRET strRet)
 {
     if (!pidl)
-        return S_FALSE;
+        return E_NOTIMPL;
 
     // Validate that this pidl is the last one
     PCUIDLIST_RELATIVE curpidl = ILGetNext(pidl);