diff --git a/src/components/TranslatePanel.tsx b/src/components/TranslatePanel.tsx
index be60664..539c305 100644
--- a/src/components/TranslatePanel.tsx
+++ b/src/components/TranslatePanel.tsx
@@ -158,7 +158,13 @@ export function TranslatePanel({
           break;
       }
     };
-    worker.onerror = (event) => fail(event.message ?? "", "worker-crash");
+    // An empty crash message is the silent OOM tab-kill signature (D-027,
+    // D-030) — say so in words the "translate" stage classifies as OOM.
+    worker.onerror = (event) =>
+      fail(
+        event.message || "The translation stopped: the browser ran out of memory.",
+        "worker-crash",
+      );
     const request: TranslateRequest = {
       type: "translate",
       requestId,