diff --git a/ackrc b/ackrc
index 4e83e35..954f819 100644
--- a/ackrc
+++ b/ackrc
@@ -1,2 +1,6 @@
 --type-add
 js=.coffee
+--type-add
+html=.haml,.chaml
+--type-add
+css=.sass,.scss,.styl