diff --git a/fpdfsdk/formfiller/cffl_formfiller.cpp b/fpdfsdk/formfiller/cffl_formfiller.cpp
index fd569c7..2c6138b 100644
--- a/fpdfsdk/formfiller/cffl_formfiller.cpp
+++ b/fpdfsdk/formfiller/cffl_formfiller.cpp
@@ -233,19 +233,19 @@
   return pWnd && pWnd->OnChar(nChar, nFlags);
 }
 
-CFX_WideString CFFL_FormFiller::GetSelectedText(CPDFSDK_Annot* pAnnot) {
+WideString CFFL_FormFiller::GetSelectedText(CPDFSDK_Annot* pAnnot) {
   if (!IsValid())
-    return CFX_WideString();
+    return WideString();
 
   CPDFSDK_PageView* pPageView = GetCurPageView(true);
   ASSERT(pPageView);
 
   CPWL_Wnd* pWnd = GetPDFWindow(pPageView, false);
-  return pWnd ? pWnd->GetSelectedText() : CFX_WideString();
+  return pWnd ? pWnd->GetSelectedText() : WideString();
 }
 
 void CFFL_FormFiller::ReplaceSelection(CPDFSDK_Annot* pAnnot,
-                                       const CFX_WideString& text) {
+                                       const WideString& text) {
   if (!IsValid())
     return;