diff --git a/plugins/ekuiper/plugin_ekuiper.c b/plugins/ekuiper/plugin_ekuiper.c
index 3dc42962..7b285c13 100644
--- a/plugins/ekuiper/plugin_ekuiper.c
+++ b/plugins/ekuiper/plugin_ekuiper.c
@@ -195,7 +195,7 @@ static const neu_plugin_intf_funs_t plugin_intf_funs = {
 
 const neu_plugin_module_t neu_plugin_module = {
     .version         = NEURON_PLUGIN_VER_1_0,
-    .schema          = "ekuiper.json",
+    .schema          = "ekuiper",
     .module_name     = "ekuiper",
     .module_descr    = "Neuron and LF Edge eKuiper integration plugin",
     .module_descr_zh = "Neuron 和 LF Edge eKuiper 一体化插件",
diff --git a/plugins/file/file_plugin.c b/plugins/file/file_plugin.c
index 20e21c3f..00368524 100644
--- a/plugins/file/file_plugin.c
+++ b/plugins/file/file_plugin.c
@@ -52,7 +52,7 @@ static const neu_plugin_intf_funs_t plugin_intf_funs = {
 
 const neu_plugin_module_t neu_plugin_module = {
     .version         = NEURON_PLUGIN_VER_1_0,
-    .schema          = "file.json",
+    .schema          = "file",
     .module_name     = "file",
     .module_descr    = "The plugin is used to read and write files.",
     .module_descr_zh = "该插件用于读写文件。",
diff --git a/plugins/modbus/modbus_tcp.c b/plugins/modbus/modbus_tcp.c
index 205416f0..e7f6c68e 100644
--- a/plugins/modbus/modbus_tcp.c
+++ b/plugins/modbus/modbus_tcp.c
@@ -56,7 +56,7 @@ static const neu_plugin_intf_funs_t plugin_intf_funs = {
 
 const neu_plugin_module_t neu_plugin_module = {
     .version      = NEURON_PLUGIN_VER_1_0,
-    .schema       = "modbus-tcp.json",
+    .schema       = "modbus-tcp",
     .module_name  = "modbus-tcp",
     .module_descr = "The modbus-tcp plugin is used for devices connected using "
                     "the modbus protocol tcp mode.",
diff --git a/plugins/monitor/monitor.c b/plugins/monitor/monitor.c
index 3f15052b..8c6f4d98 100644
--- a/plugins/monitor/monitor.c
+++ b/plugins/monitor/monitor.c
@@ -469,7 +469,7 @@ static const neu_plugin_intf_funs_t plugin_intf_funs = {
 
 const neu_plugin_module_t neu_plugin_module = {
     .version         = NEURON_PLUGIN_VER_1_0,
-    .schema          = "monitor.json",
+    .schema          = "monitor",
     .module_name     = "monitor",
     .module_descr    = DEFAULT_MONITOR_PLUGIN_DESCR,
     .module_descr_zh = DEFAULT_MONITOR_PLUGIN_DESCR_ZH,
diff --git a/plugins/mqtt/mqtt_plugin.c b/plugins/mqtt/mqtt_plugin.c
index 68198eca..565ac552 100644
--- a/plugins/mqtt/mqtt_plugin.c
+++ b/plugins/mqtt/mqtt_plugin.c
@@ -375,7 +375,7 @@ static const neu_plugin_intf_funs_t plugin_intf_funs = {
 
 const neu_plugin_module_t neu_plugin_module = {
     .version         = NEURON_PLUGIN_VER_1_0,
-    .schema          = "mqtt.json",
+    .schema          = "mqtt",
     .module_name     = "mqtt",
     .module_descr    = DESCRIPTION,
     .module_descr_zh = DESCRIPTION_ZH,
diff --git a/plugins/restful/normal_handle.c b/plugins/restful/normal_handle.c
index d7d100f4..e0c9a319 100644
--- a/plugins/restful/normal_handle.c
+++ b/plugins/restful/normal_handle.c
@@ -167,14 +167,14 @@ void handle_get_plugin_schema(nng_aio *aio)
 
     NEU_VALIDATE_JWT(aio);
 
-    const char *plugin_name = neu_http_get_param(aio, "plugin_name", &len);
-    if (plugin_name == NULL || len == 0) {
+    const char *schema_name = neu_http_get_param(aio, "schema_name", &len);
+    if (schema_name == NULL || len == 0) {
         neu_http_bad_request(aio, "{\"error\": 1002}");
         return;
     }
 
     if (0 > neu_asprintf(&schema_path, "%s/schema/%s.json", g_plugin_dir,
-                         plugin_name)) {
+                         schema_name)) {
         NEU_JSON_RESPONSE_ERROR(NEU_ERR_EINTERNAL, {
             neu_http_response(aio, error_code.error, result_error);
         });