diff --git a/include/neuron/errcodes.h b/include/neuron/errcodes.h
index dab11ecf..2e4317c3 100644
--- a/include/neuron/errcodes.h
+++ b/include/neuron/errcodes.h
@@ -109,6 +109,7 @@ typedef enum {
     NEU_ERR_PLUGIN_TAG_NOT_ALLOW_WRITE = 3004,
     NEU_ERR_PLUGIN_TAG_NOT_EXIST       = 3005,
     NEU_ERR_PLUGIN_GRP_NOT_SUBSCRIBE   = 3006,
+    NEU_ERR_PLUGIN_TAG_TYPE_MISMATCH   = 3007,
 
     NEU_ERR_MQTT_FAILURE                        = 4000,
     NEU_ERR_MQTT_NO_CERTFILESET                 = 4001,