diff --git a/tap_zendesk/streams.py b/tap_zendesk/streams.py
index 5c7ea7c..622df33 100644
--- a/tap_zendesk/streams.py
+++ b/tap_zendesk/streams.py
@@ -29,6 +29,7 @@
     'integer': 'integer',
     'decimal': 'number',
     'checkbox': 'boolean',
+    'lookup': 'integer',
 }
 
 def get_abs_path(path):