diff --git a/server/miastamaszerujace.js b/server/miastamaszerujace.js
index ce14f2b3b..c9d6cf42c 100644
--- a/server/miastamaszerujace.js
+++ b/server/miastamaszerujace.js
@@ -40,7 +40,7 @@ const fetchEvents = async () => {
 
     const dir = `${__dirname}/../static/calendar`;
     const path = `${dir}/miastamaszerujace-${year}.json`;
-    const previous = fs.existsSync(path) ? JSON.parse(fs.readFileSync(path).toString('UTF-8')) : null;
+    const previous = fs.existsSync(path) ? JSON.parse(fs.readFileSync(path).toString('UTF-8')) : [];
     if (JSON.stringify(events) !== JSON.stringify(previous)) {
         console.log('wykryto zmiany, wysyłam maila');
         mailer('andrea@pronouns.page', 'miastamaszerujace', {
@@ -49,6 +49,7 @@ const fetchEvents = async () => {
             maxwidth: '100%',
         })
     }
+    if (previous.length > events.length) { return; }
     fs.writeFileSync(path, JSON.stringify(events, null, 4));
 
     createEvents(