diff --git a/encrypt-swap-Ubuntu-20.04.md b/encrypt-swap-Ubuntu-20.04.md
index 9116ea8..9e4827e 100644
--- a/encrypt-swap-Ubuntu-20.04.md
+++ b/encrypt-swap-Ubuntu-20.04.md
@@ -5,7 +5,7 @@
 * all command bellow are run has root
 * install ecryptfs
 
-~~~{shell}
+~~~{properties}
 install apt-get install ecryptfs-utils
 ~~~