diff --git a/sonic-chassisd/scripts/chassisd b/sonic-chassisd/scripts/chassisd
index 2dbc9e325..2023502cc 100755
--- a/sonic-chassisd/scripts/chassisd
+++ b/sonic-chassisd/scripts/chassisd
@@ -515,6 +515,7 @@ class ModuleUpdater(logger.Logger):
                 local lagid = redis.call('HGET', 'SYSTEM_LAG_ID_TABLE', lagname)\n\
                 redis.call('SREM', 'SYSTEM_LAG_ID_SET', lagid)\n\
                 redis.call('HDEL', 'SYSTEM_LAG_ID_TABLE', lagname)\n\
+                redis.call('rpush', 'SYSTEM_LAG_IDS_FREE_LIST', lagid)\n\
             end\n\
         end\n\
         return"