diff --git a/bin/swift-drive-audit b/bin/swift-drive-audit
index c9c456d3af..b771670423 100755
--- a/bin/swift-drive-audit
+++ b/bin/swift-drive-audit
@@ -84,7 +84,7 @@ def get_errors(error_re, log_file_pattern, minutes, logger,
     # track of the year and month in case the year recently
     # ticked over
     year = now_time.year
-    prev_entry_month = now_time.month
+    prev_entry_month = now_time.strftime('%b')
     errors = {}
 
     reached_old_logs = False