diff --git a/src/app/components/message/layout/layout.css.ts b/src/app/components/message/layout/layout.css.ts
index 50a1af20..690095b2 100644
--- a/src/app/components/message/layout/layout.css.ts
+++ b/src/app/components/message/layout/layout.css.ts
@@ -585,9 +585,9 @@ globalStyle(`${StreamName} > *`, {
 // its centre) doesn't shift; the fill spans the line height.
 export const StreamNamePeerBubble = style({
   backgroundColor: color.Surface.Container,
-  // Slightly larger rounding than the message bubble (user request) + wider
-  // horizontal padding to match the taller chip.
-  borderRadius: toRem(9),
+  // Same rounding as the message bubble (user request); wider horizontal
+  // padding to match the taller chip.
+  borderRadius: StreamBubbleRadius,
   paddingLeft: toRem(11),
   paddingRight: toRem(11),
 });