diff --git a/package/lean/luci-app-flowoffload/root/etc/config/flowoffload b/package/lean/luci-app-flowoffload/root/etc/config/flowoffload
index 225b8da592..65fd8c3586 100644
--- a/package/lean/luci-app-flowoffload/root/etc/config/flowoffload
+++ b/package/lean/luci-app-flowoffload/root/etc/config/flowoffload
@@ -3,5 +3,5 @@ config flow
 	option flow_offloading '1'
 	option flow_offloading_hw '0'
 	option dns '0'
-	option dns_server '114.114.114.114 ,114.114.115.115'
+	option dns_server '114.114.114.114,114.114.115.115'
 
diff --git a/package/lean/luci-app-sfe/root/etc/config/sfe b/package/lean/luci-app-sfe/root/etc/config/sfe
index 67b16b619d..e1154489c9 100644
--- a/package/lean/luci-app-sfe/root/etc/config/sfe
+++ b/package/lean/luci-app-sfe/root/etc/config/sfe
@@ -4,5 +4,5 @@ config sfe 'config'
 	option ipv6 '0'
 	option wifi '0'
 	option dns '0'
-	option dns_server '114.114.114.114 ,114.114.115.115'
+	option dns_server '114.114.114.114,114.114.115.115'