diff --git a/src/server/ga/log.go b/src/server/ga/log.go
index ad10ca12..18fc609f 100644
--- a/src/server/ga/log.go
+++ b/src/server/ga/log.go
@@ -1,6 +1,8 @@
 package ga
 
 import (
+	"fmt"
+
 	galog "github.com/tuyou/galog"
 )
 
@@ -22,7 +24,7 @@ func init() {
 func GAlogEvent(event string, userID string, deviceID string, properties map[string]interface{}) {
 	newProperties := make(map[string]interface{})
 	for k, v := range properties {
-		newProperties["proj_"+k] = v
+		newProperties["proj_"+k] = fmt.Sprintf("%v", v)
 	}
 	properties = newProperties
 	glogger.