diff --git a/encrypt-swap-Ubuntu-20.04.md b/encrypt-swap-Ubuntu-20.04.md
index 92ce9ea..4db7974 100644
--- a/encrypt-swap-Ubuntu-20.04.md
+++ b/encrypt-swap-Ubuntu-20.04.md
@@ -6,7 +6,7 @@
 * install ecryptfs
 
 ~~~{sh}
-# install apt-get install ecryptfs-utils
+$ install apt-get install ecryptfs-utils
 ~~~
 
 ## encrypt swap