diff --git a/ack/ackrc.symlink b/ack/ackrc.symlink
index 26f6330..6c935a0 100644
--- a/ack/ackrc.symlink
+++ b/ack/ackrc.symlink
@@ -8,3 +8,6 @@
 
 # ignore directories
 --ignore-dir=node_modules
+
+# added file types
+--type-set=less=.less