diff --git a/server/streams.ts b/server/streams.ts
index 2d10837..867fa1e 100644
--- a/server/streams.ts
+++ b/server/streams.ts
@@ -86,6 +86,6 @@ export async function broadcastUpdate(schedule: Schedule) {
 
 function sendKeepalive() {
 	for (const stream of streams.keys()) {
-		sendMessage(stream, "data: keepalive\n\n");
+		sendMessage(stream, ": keepalive\n");
 	}
 }