diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index c921129..29b9fe2 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -1602,7 +1602,7 @@ const char *CastExpr::getCastKindName() const {
   case CK_ARCReclaimReturnedObject:
     return "ARCReclaimReturnedObject";
   case CK_ARCExtendBlockObject:
-    return "ARCCExtendBlockObject";
+    return "ARCExtendBlockObject";
   case CK_AtomicToNonAtomic:
     return "AtomicToNonAtomic";
   case CK_NonAtomicToAtomic: