diff --git a/.zshrc b/.zshrc
index f45428a..b393712 100644
--- a/.zshrc
+++ b/.zshrc
@@ -24,6 +24,10 @@ fi
 alias	la='ls	-alsF'
 alias	cup='cvs -q update -d -P'
 alias	digs='dig +nocomments +nostats +nocmd'
+if [ -x =ack-grep ]
+then
+    alias ack='ack-grep'
+fi
 
 namedir(){
 	eval "$1=~+"