diff --git a/merge_service_data.py b/merge_service_data.py
index 7f74b57..4f423f4 100644
--- a/merge_service_data.py
+++ b/merge_service_data.py
@@ -38,4 +38,4 @@ for feature in json_data['features']:
 
 # write out new geojson file with the updates
 with open(output_file, 'w') as newfile:
-  json.dump(json_data, newfile, indent=2)
+  json.dump(json_data, newfile, separators=(',', ':'))