diff --git a/.gitignore b/.gitignore
index 7ee8a3d..5e8bc31 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,9 @@ web/core
 web/modules/contrib
 web/profiles
 web/sites
+## Temporarily allow deployment of custom modules (by only ignoring contrib here).
+## So far we are using custom modules for migration only, which wouldn't technically
+## ever be required on the platform.
 web/themes/contrib
 web/themes/custom/*/*.php
 web/themes/custom/*/*.js