diff --git a/main.go b/main.go
index d7df0b9..788aa9b 100644
--- a/main.go
+++ b/main.go
@@ -99,7 +99,7 @@ func main() {
 			return
 		}
 		elapsed := time.Since(start)
-		fmt.Printf("getobject,%v\n", elapsed.Milliseconds)
+		fmt.Printf("getobject,%v\n", elapsed.Milliseconds())
 	}
 
 	for i := 0; i < 100; i++ {