diff --git a/translated/How to Install and Configure UFW – An Un-complicated FireWall in Debian or Ubuntu.md b/translated/How to Install and Configure UFW – An Un-complicated FireWall in Debian or Ubuntu.md
index 13376cd5e9..58c88c809d 100644
--- a/translated/How to Install and Configure UFW – An Un-complicated FireWall in Debian or Ubuntu.md	
+++ b/translated/How to Install and Configure UFW – An Un-complicated FireWall in Debian or Ubuntu.md	
@@ -28,7 +28,7 @@ Debian/Ubuntu系统中安装和配置UFW－简单的防火墙
 
 #### UFW 基本用法 ####
 
-首先，用如下命令来检查下系统上是否已经安装了 **UFW** 。
+首先，用如下命令来检查下系统上是否已经安装了 **UFW** 。 
 
     $ sudo dpkg --get-selections | grep ufw