diff --git a/weed/glog/glog.go b/weed/glog/glog.go
index abd5678d4..f46632f1c 100644
--- a/weed/glog/glog.go
+++ b/weed/glog/glog.go
@@ -46,7 +46,7 @@
 //	-stderrthreshold=ERROR
 //		Log events at or above this severity are logged to standard
 //		error as well as to files.
-//	-log_dir=""
+//	-logdir=""
 //		Log files will be written to this directory instead of the
 //		default temporary directory.
 //