diff --git a/example/trace/otlp/grpc/main.go b/example/trace/otlp/grpc/main.go
index a20e63dba7b..8c66b4a578e 100644
--- a/example/trace/otlp/grpc/main.go
+++ b/example/trace/otlp/grpc/main.go
@@ -10,7 +10,6 @@ import (
 	"github.com/gogf/gf/v2/frame/g"
 	"github.com/gogf/gf/v2/net/gtrace"
 	"github.com/gogf/gf/v2/os/gctx"
-
 	"github.com/gogf/gf/contrib/trace/otlpgrpc/v2"
 )