diff --git a/xxx-line-filter.go b/096-line-filter.go
similarity index 100%
rename from xxx-line-filter.go
rename to 096-line-filter.go
diff --git a/tool/index.txt b/tool/index.txt
index 1d10e27..87cd9fa 100644
--- a/tool/index.txt
+++ b/tool/index.txt
@@ -93,3 +93,4 @@ timers
 url
 users
 worker-pool
+line-filter
\ No newline at end of file