1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Rewrite/Frontend/RewriteModernObjC.cpp b/lib/Rewrite/Frontend/RewriteModernObjC.cpp
index ba5d669f08..34ffd22723 100644
--- a/lib/Rewrite/Frontend/RewriteModernObjC.cpp
+++ b/lib/Rewrite/Frontend/RewriteModernObjC.cpp
@@ -16,6 +16,7 @@
 #include "clang/AST/ASTConsumer.h"
 #include "clang/AST/Attr.h"
 #include "clang/AST/ParentMap.h"
+#include "clang/Basic/CharInfo.h"
 #include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/SourceManager.h"
@@ -2608,7 +2609,7 @@ Stmt *RewriteModernObjC::RewriteObjCStringLiteral(ObjCStringLiteral *Exp) {
   for (i=0; i < tmpName.length(); i++) {
     char c = tmpName.at(i);
     // replace any non alphanumeric characters with '_'.
-    if (!isalpha(c) && (c < '0' || c > '9'))
+    if (!isAlphanumeric(c))
       tmpName[i] = '_';
   }
   S += tmpName;