diff --git a/index.js b/index.js
index 213b843..fcf4796 100644
--- a/index.js
+++ b/index.js
@@ -127,7 +127,14 @@ Searxng.prototype.handleMessage = function(event, room) {
 			return;
 		}
 		else if (this.roomUserWhitelists.has(room.roomId) && this.roomUserWhitelists.get(room.roomId).indexOf(event.getSender()) < 0) {
-			this.matrixClient.sendNotice(room.roomId, "You are not on the whitelist for this room.");
+			const lastRoomWarningTime = lastWarningTimes.get(room.roomId);
+
+			const currentTime = Date.now();
+
+			if  (isNaN(lastRoomWarningTime) || (Date.now() - lastRoomWarningTime) > 10000) {
+				this.matrixClient.sendNotice(room.roomId, "You are not on the whitelist for this room.");
+				lastWarningTimes.set(room.roomId, currentTime);
+			}
 			return;
 		}
 		else if (this.cooldownImmuneUsers.indexOf(event.getSender()) < 0) {