diff --git a/src/modules/scanForTimetableChanges.ts b/src/modules/scanForTimetableChanges.ts
index 0536e77..ef2792e 100644
--- a/src/modules/scanForTimetableChanges.ts
+++ b/src/modules/scanForTimetableChanges.ts
@@ -41,7 +41,7 @@ export  async function run() {
                 ro: 'Room'
             }
             for (const prop of ['kl', 'te', 'su', 'ro']) {
-                if (lesson[prop]?.[0] != kLesson[prop]?.[0])
+                if (lesson[prop]?.[0] == kLesson[prop]?.[0])
                     desc += `**${propFullName[prop]}:** ${kLesson[prop]?.[0]?.longname} ${kLesson[prop]?.[0]?.longname != kLesson[prop]?.[0]?.name ? `(${(kLesson[prop]?.[0]?.name)})` : ''} \u200b **=>** \u200b ${lesson[prop]?.[0]?.longname} ${lesson[prop]?.[0]?.longname != lesson[prop]?.[0]?.name ? `(${lesson[prop]?.[0]?.name})` : ''} \n`;
             }
             if (lesson.activityType != kLesson.activityType)