diff --git a/go/weed/server.go b/go/weed/server.go
index ade040b15..80ea27a9d 100644
--- a/go/weed/server.go
+++ b/go/weed/server.go
@@ -44,7 +44,7 @@ var (
 	serverPeers               = cmdServer.Flag.String("peers", "", "comma separated ip:masterPort list")
 	masterPort                = cmdServer.Flag.Int("masterPort", 9333, "master server http listen port")
 	masterMetaFolder          = cmdServer.Flag.String("mdir", os.TempDir(), "data directory to store meta data")
-	masterVolumeSizeLimitMB   = cmdServer.Flag.Uint("volumeSizeLimitMB", 32*1024, "Default Volume Size in MegaBytes")
+	masterVolumeSizeLimitMB   = cmdServer.Flag.Uint("volumeSizeLimitMB", 32*1000, "Default Volume Size in MegaBytes")
 	masterConfFile            = cmdServer.Flag.String("conf", "/etc/weedfs/weedfs.conf", "xml configuration file")
 	masterDefaultRepType      = cmdServer.Flag.String("defaultReplicationType", "000", "Default replication type if not specified.")
 	volumePort                = cmdServer.Flag.Int("port", 8080, "volume server http listen port")