diff --git a/jobs/tasks.py b/jobs/tasks.py
index 41e0c57..d192255 100644
--- a/jobs/tasks.py
+++ b/jobs/tasks.py
@@ -20,18 +20,21 @@ class TasksJob(Job):
         return "UKOLY DNE"
 
     def configure(self):
-        print("\n--- Configure Calendar URL ---")
-        print("To find your Google Calendar URL:")
-        print("1. Go to Settings > Select Calendar > Integrate calendar")
-        print("2. Copy 'Secret address in iCal format'")
-        print("-" * 30)
-        print("Enter the public or secret address in iCal format (.ics).")
-        print("Example: https://calendar.google.com/calendar/ical/.../basic.ics")
-        url = input("URL: ").strip()
-        if url:
-            with open('calendar_url.txt', 'w') as f:
-                f.write(url)
-            print("URL saved.")
+        if not os.path.exists('calendar_url.txt'):
+            print("\n--- Configure Calendar URL ---")
+            print("To find your Google Calendar URL:")
+            print("1. Go to Settings > Select Calendar > Integrate calendar")
+            print("2. Copy 'Secret address in iCal format'")
+            print("-" * 30)
+            print("Enter the public or secret address in iCal format (.ics).")
+            print("Example: https://calendar.google.com/calendar/ical/.../basic.ics")
+            url = input("URL: ").strip()
+            if url:
+                with open('calendar_url.txt', 'w') as f:
+                    f.write(url)
+                print("URL saved.")
+        else:
+            print("\nCalendar URL is already configured (delete calendar_url.txt to reset).")
         
         print("-" * 30)
         try: