diff --git a/utils/ccc-analyzer b/utils/ccc-analyzer
index 038032f..23a6d6a 100755
--- a/utils/ccc-analyzer
+++ b/utils/ccc-analyzer
@@ -74,7 +74,7 @@
       command = 'cp'.split()
       args = command + files + target.split()      
     else:
-      command = 'clang --grsimple'.split()
+      command = 'clang -check-cfref'.split()
       args = command + args;
       
       if htmldir is not None: