diff --git a/riot.im/nightly/config.json b/riot.im/nightly/config.json
index 164bcb7..8262169 100644
--- a/riot.im/nightly/config.json
+++ b/riot.im/nightly/config.json
@@ -24,7 +24,8 @@
         "feature_bridge_state": "labs",
         "feature_presence_in_room_list": "labs",
         "feature_custom_themes": "labs",
-        "feature_irc_ui": "labs"
+        "feature_irc_ui": "labs",
+        "feature_font_scaling": "labs"
     },
     "piwik": {
         "url": "https://piwik.riot.im/",