diff --git a/include/dwarfs/hash_util.h b/include/dwarfs/hash_util.h
index cabdbe4f..94576f0a 100644
--- a/include/dwarfs/hash_util.h
+++ b/include/dwarfs/hash_util.h
@@ -37,4 +37,4 @@ struct hasher<std::string_view> {
   }
 };
 
-}
+} // namespace folly