diff --git a/bot.py b/bot.py
index 70e05bf..a715edd 100644
--- a/bot.py
+++ b/bot.py
@@ -2378,13 +2378,13 @@ if __name__ == "__main__":
     WRK_CNT = 0
     for worker in threads:
         WRK_CNT+=1
-        logger.info("Starting discord bot: Starting thread {WRK_CNT}")
+        logger.info("Starting discord bot: Starting thread %s", WRK_CNT)
         worker.start()
     logger.info("Starting discord bot: Joining threads")
     WRK_CNT=0
     for worker in threads:
         WRK_CNT+=1
-        logger.info("Starting discord bot: Joining thread {WRK_CNT}")
+        logger.info("Starting discord bot: Joining thread %s", WRK_CNT)
         worker.join()
 
 # widok - generuje się 5 stron po 4 linki