diff --git a/include/neuron/errcodes.h b/include/neuron/errcodes.h
index 6355fcd8..5d409393 100644
--- a/include/neuron/errcodes.h
+++ b/include/neuron/errcodes.h
@@ -87,6 +87,7 @@ typedef enum {
     NEU_ERR_LICENSE_MAX_NODES       = 2404,
     NEU_ERR_LICENSE_MAX_TAGS        = 2405,
     NEU_ERR_LICENSE_TOKEN_NOT_MATCH = 2406,
+    NEU_ERR_LICENSE_BAD_CLOCK       = 2407,
 
     // common error codes for plugins
     NEU_ERR_PLUGIN_READ_FAILURE            = 3000,