diff --git a/.zshenv b/.zshenv
index d51e5b1..3e8febd 100644
--- a/.zshenv
+++ b/.zshenv
@@ -29,6 +29,7 @@ export PARBODY=_A_a
 export DEBEMAIL=hjp@hjp.at
 export DEB_SIGN_KEYID=4ED25B463C8FC154D8189E64F20E485112FE285D
 export ACK_COLOR_FILENAME='blue on_white'
+export NODE_DISABLE_COLORS=1
 
 # Fix up locale. Must do this early or we get a lot of warnings if a
 # locale isn't installed.