diff --git a/surfacelights/surfacelights-1.19.ckan b/surfacelights/surfacelights-1.19.ckan
index d6d72b2b6b..70c4a187d8 100644
--- a/surfacelights/surfacelights-1.19.ckan
+++ b/surfacelights/surfacelights-1.19.ckan
@@ -42,6 +42,7 @@
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     },
     "download_content_type": "application/zip",
+    "install_size": 811950,
     "release_date": "2021-07-03T09:47:52.833217+00:00",
     "x_generated_by": "netkan"
 }