diff --git a/run_service_backend.py b/run_service_backend.py
index 1c21f9f..06a6606 100644
--- a/run_service_backend.py
+++ b/run_service_backend.py
@@ -112,7 +112,7 @@ def skland_sign_in_thread():
     try:
         last_run = None
         next_run_time = random_time(480, 720)
-        ark_back.logger.info('Next skland sign-in time:', next_run_time)
+        ark_back.logger.info(f'Next skland sign-in time: {next_run_time}')
         while 1:
             if not ark_back.is_retrieving_data:
                 break