diff --git a/app/routers/radio.py b/app/routers/radio.py
index 5eaa5ea4a..cbbcac1f1 100644
--- a/app/routers/radio.py
+++ b/app/routers/radio.py
@@ -134,29 +134,25 @@ async def set_private_key(update: PrivateKeyUpdate) -> dict:
 
 
 @router.post("/advertise")
-async def send_advertisement(flood: bool = True) -> dict:
-    """Send a radio advertisement to announce presence on the mesh.
+async def send_advertisement() -> dict:
+    """Send a flood advertisement to announce presence on the mesh.
 
     Manual advertisement requests always send immediately, updating the
     last_advert_time which affects when the next periodic/startup advert
     can occur.
 
-    Args:
-        flood: Whether to flood the advertisement (default True).
-
     Returns:
         status: "ok" if sent successfully
     """
     require_connected()
 
-    # Manual requests always send (force=True), but still update last_advert_time
-    logger.info("Sending advertisement (flood=%s)", flood)
+    logger.info("Sending flood advertisement")
     success = await do_send_advertisement(force=True)
 
     if not success:
         raise HTTPException(status_code=500, detail="Failed to send advertisement")
 
-    return {"status": "ok", "flood": flood}
+    return {"status": "ok"}
 
 
 @router.post("/reboot")
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 2fb894de0..ce6d80792 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -543,7 +543,7 @@ export function App() {
   // Send flood advertisement handler
   const handleAdvertise = useCallback(async () => {
     try {
-      await api.sendAdvertisement(true);
+      await api.sendAdvertisement();
       toast.success('Advertisement sent');
     } catch (err) {
       console.error('Failed to send advertisement:', err);
diff --git a/frontend/src/api.ts b/frontend/src/api.ts
index f29b069b7..87f22b551 100644
--- a/frontend/src/api.ts
+++ b/frontend/src/api.ts
@@ -76,8 +76,8 @@ export const api = {
       method: 'PUT',
       body: JSON.stringify({ private_key: privateKey }),
     }),
-  sendAdvertisement: (flood = true) =>
-    fetchJson<{ status: string; flood: boolean }>(`/radio/advertise?flood=${flood}`, {
+  sendAdvertisement: () =>
+    fetchJson<{ status: string }>('/radio/advertise', {
       method: 'POST',
     }),
   rebootRadio: () =>