diff --git a/include/clang/Basic/SourceLocation.h b/include/clang/Basic/SourceLocation.h
index a77eadd..319857e 100644
--- a/include/clang/Basic/SourceLocation.h
+++ b/include/clang/Basic/SourceLocation.h
@@ -258,8 +258,6 @@
 
   bool isInSystemHeader() const;
   
-  bool isFileID() const { return Loc.isFileID(); }
-  
   unsigned getCanonicalFileID() const;
   
   bool operator==(const FullSourceLoc& RHS) const {
diff --git a/lib/Basic/SourceLocation.cpp b/lib/Basic/SourceLocation.cpp
index a342931..41ada63 100644
--- a/lib/Basic/SourceLocation.cpp
+++ b/lib/Basic/SourceLocation.cpp
@@ -119,7 +119,7 @@
     return;
   }
   
-  if (isFileID()) {
+  if (Loc.isFileID()) {
     // The instantiation and spelling pos is identical for file locs.
     fprintf(stderr, "File Loc from '%s': %d: %d\n",
             getSourceName(), getInstantiationLineNumber(),