diff --git a/sources/talk/20170119 Be a force for good in your community.md b/sources/talk/20170119 Be a force for good in your community.md
index c58100cf63..22c43d8470 100644
--- a/sources/talk/20170119 Be a force for good in your community.md	
+++ b/sources/talk/20170119 Be a force for good in your community.md	
@@ -1,3 +1,5 @@
+Translating by chao-zhi
+
 Be a force for good in your community
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