diff --git a/.zshenv b/.zshenv
index a449b29..760bb89 100644
--- a/.zshenv
+++ b/.zshenv
@@ -26,6 +26,7 @@ export PGPPATH=~/.pgp
 export PARINIT=q1
 export PARBODY=_A_a
 export DEBEMAIL=hjp@hjp.at
+export export ACK_COLOR_FILENAME='blue on_white'
 
 
 # don't rely on a sane path at this point: