diff --git a/autoconfig/test_nj_4/yoho-gateway-autoconfig.properties b/autoconfig/test_nj_4/yoho-gateway-autoconfig.properties
index 195b1d5..d3622a1 100644
--- a/autoconfig/test_nj_4/yoho-gateway-autoconfig.properties
+++ b/autoconfig/test_nj_4/yoho-gateway-autoconfig.properties
@@ -63,4 +63,5 @@ innerHostSuffix=yohops.com
 
 uic.service.url  = http://uic.yohoops.org:8096/uic
 
-
+#signature encrypt key salt
+gateway.signature.key.salt=mQyMTMwZjlmZTZmYjY4UjkNmYwZGM0OTk0Y