diff --git a/deployer/roles/build/templates/synapse/homeserver.yaml.j2 b/deployer/roles/build/templates/synapse/homeserver.yaml.j2
index 711107a..e77f26c 100644
--- a/deployer/roles/build/templates/synapse/homeserver.yaml.j2
+++ b/deployer/roles/build/templates/synapse/homeserver.yaml.j2
@@ -803,7 +803,7 @@ max_upload_size: {{ site.max_upload_size }}
 # 'false' by default: uncomment the following to enable it (and specify a
 # url_preview_ip_range_blacklist blacklist).
 #
-#url_preview_enabled: true
+url_preview_enabled: true
 
 # List of IP address CIDR ranges that the URL preview spider is denied
 # from accessing.  There are no defaults: you must explicitly