diff --git a/clang/lib/Analysis/FormatString.cpp b/clang/lib/Analysis/FormatString.cpp
index bbc6f07..8e295aa 100644
--- a/clang/lib/Analysis/FormatString.cpp
+++ b/clang/lib/Analysis/FormatString.cpp
@@ -200,7 +200,7 @@
     case 'L': lmKind = LengthModifier::AsLongDouble; ++I; break;
     case 'q': lmKind = LengthModifier::AsLongLong;   ++I; break;
     case 'a':
-      if (IsScanf && !LO.C99 && !LO.CPlusPlus) {
+      if (IsScanf && !LO.C99 && !LO.CPlusPlus0x) {
         // For scanf in C90, look at the next character to see if this should
         // be parsed as the GNU extension 'a' length modifier. If not, this
         // will be parsed as a conversion specifier.