diff --git a/src/zen/common/styles/zen-single-components.css b/src/zen/common/styles/zen-single-components.css
index c16e46c9..c31b5cb1 100644
--- a/src/zen/common/styles/zen-single-components.css
+++ b/src/zen/common/styles/zen-single-components.css
@@ -104,7 +104,7 @@ body > #confetti {
     #zen-sidebar-top-buttons-customization-target
     &,
   #zen-sidebar-foot-buttons & {
-    --tab-border-radius: 4px;
+    --tab-border-radius: 6px;
     --toolbarbutton-border-radius: var(--tab-border-radius);
     --toolbarbutton-inner-padding: 7px;