diff --git a/lib/Frontend/PrintParserCallbacks.cpp b/lib/Frontend/PrintParserCallbacks.cpp
index b9fe068..026e605 100644
--- a/lib/Frontend/PrintParserCallbacks.cpp
+++ b/lib/Frontend/PrintParserCallbacks.cpp
@@ -701,7 +701,8 @@
     }
 
     virtual void ActOnParamUnparsedDefaultArgument(DeclPtrTy param,
-                                                   SourceLocation EqualLoc) {
+                                                   SourceLocation EqualLoc,
+                                                   SourceLocation ArgLoc) {
       Out << __FUNCTION__ << "\n";
     }