diff --git a/source/logic/main.ts b/source/logic/main.ts
index a4ddf89..6987790 100644
--- a/source/logic/main.ts
+++ b/source/logic/main.ts
@@ -323,7 +323,10 @@ async function main(
 										// TODO: type
 										let old_item_state : (null | _heimdall.type_item_state);
 
-										let last_notification_timestamp : (null | int);
+										const last_notification_timestamp : (null | int) = await _heimdall.state_repository.get_last_notification_timestamp(
+											database_path,
+											check.name
+										);
 										
 										if (rows.length <= 0) {
 											old_item_state = null;
diff --git a/source/logic/state_repository.ts b/source/logic/state_repository.ts
index f28d0d4..63b502b 100644
--- a/source/logic/state_repository.ts
+++ b/source/logic/state_repository.ts
@@ -119,7 +119,7 @@ namespace _heimdall.state_repository
 		const rows : Array<Array<any>> = await _heimdall.helpers.sqlite.query_get(
 			database_path,
 			{
-				"template": "SELECT MIN(timestamp) FROM results WHERE (check_name = :check_name) AND (notification_sent = TRUE);",
+				"template": "SELECT MAX(timestamp) FROM results WHERE (check_name = :check_name) AND (notification_sent = TRUE);",
 				"arguments": {
 					"check_name": check_name,
 				},