diff --git a/etc/bash.bashrc b/etc/bash.bashrc
index 61148fa..68a3631 100644
--- a/etc/bash.bashrc
+++ b/etc/bash.bashrc
@@ -106,6 +106,8 @@ HOSTNAME=$(hostname -f)
 HISTCONTROL=ignoreboth
 HISTSIZE=10000
 HISTFILESIZE=20000
+BLOCK_SIZE=si
+export BLOCK_SIZE
 
 export BLOCK_SIZE=si