Autofix c casts to c++ casts
diff --git a/test/core/channel/channel_stack_builder_test.cc b/test/core/channel/channel_stack_builder_test.cc
index ef6db81..aad6d6e 100644
--- a/test/core/channel/channel_stack_builder_test.cc
+++ b/test/core/channel/channel_stack_builder_test.cc
@@ -116,7 +116,7 @@
 static bool add_original_filter(grpc_channel_stack_builder* builder,
                                 void* arg) {
   return grpc_channel_stack_builder_prepend_filter(
-      builder, (const grpc_channel_filter*)arg, set_arg_once_fn,
+      builder, static_cast<const grpc_channel_filter*>(arg), set_arg_once_fn,
       &g_original_fn_called);
 }