diff --git a/test/CFrontend/2007-04-17-ZeroSizeBitFields.c b/test/CFrontend/2007-04-17-ZeroSizeBitFields.c
index 66a35865bec..ec7b7ea273f 100644
--- a/test/CFrontend/2007-04-17-ZeroSizeBitFields.c
+++ b/test/CFrontend/2007-04-17-ZeroSizeBitFields.c
@@ -1,4 +1,4 @@
-; PR 1332
-; RUN: %llvmgcc %s -S -o /dev/null
+// PR 1332
+// RUN: %llvmgcc %s -S -o /dev/null
 
 struct Z { int a:1; int :0; int c:1; } z;