diff --git a/apps/worker/src/processors/eoc-push.ts b/apps/worker/src/processors/eoc-push.ts
index 504d123..5b01b79 100644
--- a/apps/worker/src/processors/eoc-push.ts
+++ b/apps/worker/src/processors/eoc-push.ts
@@ -139,7 +139,16 @@ export async function pushOpsSummaryToEoc(redis: Redis): Promise<EocPushResult>
     return { ok: false, status: null, error: "ops summary cache is not a JSON object" };
   }
 
-  const body = JSON.stringify(mapPayloadForEoc(parsed as Record<string, unknown>));
+  let body: string;
+  try {
+    body = JSON.stringify(mapPayloadForEoc(parsed as Record<string, unknown>));
+  } catch (err) {
+    return {
+      ok: false,
+      status: null,
+      error: `payload mapping failed: ${err instanceof Error ? err.message : String(err)}`,
+    };
+  }
 
   const controller = new AbortController();
   const timeout = setTimeout(() => controller.abort(), EOC_PUSH_TIMEOUT_MS);
diff --git a/apps/worker/test/eoc-push.test.ts b/apps/worker/test/eoc-push.test.ts
index 43c1fcc..c7ee62f 100644
--- a/apps/worker/test/eoc-push.test.ts
+++ b/apps/worker/test/eoc-push.test.ts
@@ -135,4 +135,25 @@ describe("pushOpsSummaryToEoc", () => {
       globalThis.fetch = originalFetch;
     }
   });
+
+  it("does not throw when payload mapping fails", async () => {
+    process.env.EOC_URL = "https://eoc.example.com";
+    process.env.EOC_PUSH_TOKEN = "tok";
+    await redis.set(
+      "ops:summary:cache",
+      JSON.stringify({
+        as_of: new Date().toISOString(),
+        app: { app: "cibello" },
+        wall: { boards: [{ title: 123, tiles: "nej" }] },
+      }),
+      "EX",
+      60,
+    );
+
+    await expect(pushOpsSummaryToEoc(redis)).resolves.toEqual({
+      ok: false,
+      status: null,
+      error: expect.stringMatching(/payload mapping failed/),
+    });
+  });
 });