diff --git a/packages/server/src/index.ts b/packages/server/src/index.ts
index eea7727..5da06e7 100644
--- a/packages/server/src/index.ts
+++ b/packages/server/src/index.ts
@@ -745,11 +745,13 @@ wss.on("connection", (socket, req) => {
           const called = callKeeper(room, session.playerId, KEEPER);
           if ("error" in called) return send(socket, { type: "error", message: called.error });
           // The alarm the keeper listens for: one issue per room, so each
-          // call rings once, with the door in the message.
+          // call rings once, with the door in the message. Error level,
+          // because Sentry's alerts ring for high-priority issues and a
+          // warning is filed as medium — a bell nobody hears.
           const link = `${PUBLIC_URL}/join/${room.id}`;
           if (process.env.SENTRY_DSN) {
             Sentry.captureMessage(`${session.playerId} challenges ${KEEPER} to a game — ${link}`, {
-              level: "warning",
+              level: "error",
               fingerprint: ["challenge", room.id],
               tags: { room: room.id, challenger: session.playerId },
               extra: { link, players: room.players.join(", ") },