diff --git a/src/system/detail/inc/mgmt.h b/src/system/detail/inc/mgmt.h
index 232d2e62567877a5dba11c9a664f7c8a4bedea52..cade9b6d39d46645564aadb4c6cb70d75b49a36f 100644
--- a/src/system/detail/inc/mgmt.h
+++ b/src/system/detail/inc/mgmt.h
@@ -177,7 +177,7 @@ typedef struct _user_obj {
   char              reserved[16];
   char              updateEnd[1];
   int32_t           authAllowTime;
-  int16_t           authFailCount;
+  int32_t           authFailCount;
   struct _user_obj *prev, *next;
 } SUserObj;