diff --git a/addons/web/static/src/less/base_settings.less b/addons/web/static/src/less/base_settings.less
index 4aea0d27065..74ef6472aef 100644
--- a/addons/web/static/src/less/base_settings.less
+++ b/addons/web/static/src/less/base_settings.less
@@ -75,7 +75,7 @@
 
     .o_setting_container {
         .o-flex-display();
-        .o-flex(1, 0, auto);
+        .o-flex(1, 1, auto);
 
         overflow: auto;