diff --git a/setup.py b/setup.py
index 3d364dd9..228a10d8 100644
--- a/setup.py
+++ b/setup.py
@@ -13,6 +13,7 @@
         'pyyaml',
         'pylint',
         'pytest',
+        'catalogbuilder',
         'jsonschema',
         'cylc-flow',
         'cylc-rose',