diff --git a/bashrc b/bashrc
index ad170dd..4895121 100644
--- a/bashrc
+++ b/bashrc
@@ -1,4 +1,7 @@
 
+# let's you do things like 'echo !(a|b)'
+shopt -s extglob
+
 alias sl='ls'
 alias ls='ls --color=auto'
 alias lh='ls -l -h --color=auto'