diff --git a/oneflow/core/framework/rpc_util.cpp b/oneflow/core/framework/rpc_util.cpp
index 0d73e427383a17d8e6e46981084076e011c44160..01ddd7be7823e4ecd36e4cdffa026052eea3f46e 100644
--- a/oneflow/core/framework/rpc_util.cpp
+++ b/oneflow/core/framework/rpc_util.cpp
@@ -35,7 +35,7 @@ namespace oneflow {
     CHECK_LT_OR_RETURN(elapsed_seconds.count(), seconds)
         << Error::TimeoutError() << "Timeout error at " << seconds << " seconds.";
   }
-  if (ctx.rpc_token().type() == kCtrlRpcTokenType) { ctx.rpc_token().ReleaseCtrlRpcToken(); }
+  if (ctx.rpc_token().type() == kCtrlRpcTokenType) { JUST(ctx.rpc_token().ReleaseCtrlRpcToken()); }
   return Maybe<void>::Ok();
 }