diff --git a/linux/debian/essentials/postinst b/linux/debian/essentials/postinst
index 5d8a21e050cb978250cea044a56546558070194f..0183eee9ec47a8f831dbb708183c10eaf703a5e8 100755
--- a/linux/debian/essentials/postinst
+++ b/linux/debian/essentials/postinst
@@ -58,7 +58,7 @@ sed -i "s/{SERVER_ADDR}/$RET/g" $DAP_CFG  || true
 db_get cellframe-node/notify_srv_addr || true
 sed -i "s/{NOTIFY_SRV_ADDR}/$RET/g" $DAP_CFG  || true
 
-db_get cellframe-node/nofity_srv_port || true
+db_get cellframe-node/notify_srv_port || true
 sed -i "s/{NOTIFY_SRV_PORT}/$RET/g" $DAP_CFG  || true
 
 # Init core testnet