diff --git a/utils/reader.py b/utils/reader.py
index 3c013e9..0eaaeda 100644
--- a/utils/reader.py
+++ b/utils/reader.py
@@ -38,7 +38,8 @@ class LogFileReader:
                 log.debug("no new lines to read")
                 return
 
+            self._last_line_number = await file.tell()
+
             for line in lines:
                 yield line.strip()
 
-        self._last_line_number = await file.tell()