diff --git a/mcp/benchmark/src/components/sessions/SessionDetail.tsx b/mcp/benchmark/src/components/sessions/SessionDetail.tsx
index 2c8e75fba..90cbaab08 100644
--- a/mcp/benchmark/src/components/sessions/SessionDetail.tsx
+++ b/mcp/benchmark/src/components/sessions/SessionDetail.tsx
@@ -164,7 +164,8 @@ export function SessionDetail({
                     fontSize: "18px",
                     fontWeight: 700,
                     color: "#ededed",
-                    flexShrink: 0,
+                    overflow: "hidden",
+                    textOverflow: "ellipsis",
                     whiteSpace: "nowrap",
                     margin: 0,
                     lineHeight: 1.2,