diff --git a/config/config.toml b/config/config.toml
index 6b6722b..f75c784 100644
--- a/config/config.toml
+++ b/config/config.toml
@@ -50,7 +50,7 @@ conn_write_buffer_size = 10240
 
 # if connection receives no data after n seconds, it may be dead, close 
 # 0 to disable and not check 
-conn_keepavlie_interval = 0
+conn_keepalive_interval = 0
 
 # checking TTL (time to live) data every n seconds
 # if you set big, the expired data may not be deleted immediately