diff --git a/apisix/plugins/grpc-web.lua b/apisix/plugins/grpc-web.lua
index 147004a966d5..a528985d9a8f 100644
--- a/apisix/plugins/grpc-web.lua
+++ b/apisix/plugins/grpc-web.lua
@@ -32,7 +32,7 @@ local DEFAULT_PROXY_CONTENT_TYPE = "application/grpc"
 local DEFAULT_CORS_ALLOW_EXPOSE_HEADERS = "grpc-status,grpc-message"
 
 local GRPC_WEB_TRAILER_FRAME_HEADER = string.char(128, 0, 0, 0)
-local GRPC_WEB_REQUIRED_TRAILERS_DEFAULT_VALUES = {
+local GRPC_WEB_REQ_TRAILERS_DEFAULT = {
     ["grpc-status"] = "0",
     ["grpc-message"] = "OK"
 }
@@ -177,7 +177,7 @@ function _M.body_filter(conf, ctx)
         if response and string.len(response) ~= 0 then
             local headers = ngx.resp.get_headers()
             local trailers = " "
-            for trailer_key, trailer_default_value in pairs(GRPC_WEB_REQUIRED_TRAILERS_DEFAULT_VALUES) do
+            for trailer_key, trailer_default_value in pairs(GRPC_WEB_REQ_TRAILERS_DEFAULT) do
                 local trailer_value = headers[trailer_key]
 
                 if trailer_value == nil then
diff --git a/t/plugin/grpc-web.t b/t/plugin/grpc-web.t
index 75b9a2efdd81..b9c35c81182a 100644
--- a/t/plugin/grpc-web.t
+++ b/t/plugin/grpc-web.t
@@ -228,6 +228,8 @@ Content-Type: application/grpc-web
 Access-Control-Allow-Origin: http://test.com
 Content-Type: application/grpc-web
 
+
+
 === TEST 11: grpc-web access control expose headers for non grpc servers that don't implement grpc-web
 --- request
 POST /grpc/web/a6.RouteService/GetRoute
@@ -239,4 +241,3 @@ Content-Type: application/grpc-web
 Access-Control-Allow-Origin: http://test.com
 Content-Type: application/grpc-web
 Access-Control-Expose-Headers: grpc-status,grpc-message
-