diff --git a/README.md b/README.md
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@@ -1,4 +1,4 @@
-# dtl
+# dtl - forked from [https://github.com/cubicdaiya/dtl](https://github.com/cubicdaiya/dtl)
 
 `dtl` is the diff template library written in C++. The name of template is derived C++'s Template.