diff --git a/internal/bbsimctl/commands/handler.go b/internal/bbsimctl/commands/handler.go
index 3c4b0ff..6b05534 100644
--- a/internal/bbsimctl/commands/handler.go
+++ b/internal/bbsimctl/commands/handler.go
@@ -16,12 +16,13 @@
 package commands
 
 import (
+	"io"
+
 	"github.com/golang/protobuf/proto"
 	"github.com/jhump/protoreflect/desc"
 	"github.com/jhump/protoreflect/dynamic"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/status"
-	"io"
 )
 
 type RpcEventHandler struct {
@@ -64,7 +65,10 @@
 	}
 
 	for k, v := range fields {
-		dmsg.TrySetFieldByName(k, v)
+		err := dmsg.TrySetFieldByName(k, v)
+		if err != nil {
+			return err
+		}
 	}
 	delete(h.Fields, dmsg.XXX_MessageName())