diff --git a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_influxdb.erl b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_influxdb.erl
index 83c5a4127..53d02fa6d 100644
--- a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_influxdb.erl
+++ b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_influxdb.erl
@@ -51,7 +51,7 @@ values(Protocol, get) ->
 values(Protocol, post) ->
     case Protocol of
         "influxdb_api_v2" ->
-            SupportUint = <<"uint_value=${payload.uint_key}u">>;
+            SupportUint = <<"uint_value=${payload.uint_key}u,">>;
         _ ->
             SupportUint = <<>>
     end,