diff --git a/utils/ccc-analyzer b/utils/ccc-analyzer
index 50bd82d..256d8be 100755
--- a/utils/ccc-analyzer
+++ b/utils/ccc-analyzer
@@ -110,7 +110,7 @@
       return "objective-c"
   elif extension == "mi":
       return "objective-c-cpp-output"
-  elif extension == "s":
+  elif extension == "s" or extension == "o":
       return "skip"
   else:
       return "unknown"