diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 4542555..30e9034 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -3645,7 +3645,7 @@
   
   Decl *D = Storage.get<Decl*>();
   if (UsingDecl *Using = dyn_cast<UsingDecl>(D))
-    return Using->getNumShadowDecls();
+    return Using->shadow_size();
   if (ObjCClassDecl *Classes = dyn_cast<ObjCClassDecl>(D))
     return Classes->size();
   if (ObjCForwardProtocolDecl *Protocols =dyn_cast<ObjCForwardProtocolDecl>(D))