diff --git a/util/builder.py b/util/builder.py
index <HASH>..<HASH> 100644
--- a/util/builder.py
+++ b/util/builder.py
@@ -19,6 +19,7 @@ class RainbowBuilder(object):
             'css': '1.0.7',
             'generic': '1.0.9',
             'go': '1.0',
+            'haskell': '1.0.1',
             'html': '1.0.7',
             'java': '1.0',
             'javascript': '1.0.7',
added haskell to the builder.py.