diff --git a/grib_processor/main.py b/grib_processor/main.py
index 5db261675b6d963ca267d6a0bb358d41d6d52753..4fbb22adf00ed30778ab7f4e9a0f77b063a0aa8d 100644
--- a/grib_processor/main.py
+++ b/grib_processor/main.py
@@ -67,7 +67,7 @@ def initialize_logging(verbosity: int, rotating_dir: str | None = None) -> None:
             os.path.join(rotating_dir, LOG_NAME),
             encoding="utf-8",
             backupCount=5,
-            maxBytes=150 * 1024,
+            maxBytes=150 * 1024 * 1024,
         )
         file_handler.setFormatter(log_formatter)
         file_handler.setLevel(logging.DEBUG)