diff --git a/opentech/settings/base.py b/opentech/settings/base.py
index 92cb8905333bdf184bfc7ea2b7292a8fd612644e..ce7cfeb32beedb8362a475a0258ec57c936faf89 100644
--- a/opentech/settings/base.py
+++ b/opentech/settings/base.py
@@ -455,6 +455,9 @@ if 'AWS_STORAGE_BUCKET_NAME' in env:
     if 'AWS_S3_CUSTOM_DOMAIN' in env:
         AWS_S3_CUSTOM_DOMAIN = env['AWS_S3_CUSTOM_DOMAIN']
 
+    if 'AWS_PRIVATE_CUSTOM_DOMAIN' in env:
+        AWS_PRIVATE_CUSTOM_DOMAIN = env['AWS_PRIVATE_CUSTOM_DOMAIN']
+
     if 'AWS_QUERYSTRING_EXPIRE' in env:
         AWS_QUERYSTRING_EXPIRE = env['AWS_QUERYSTRING_EXPIRE']