diff --git a/Go2ErrorHandlingFeedback.md b/Go2ErrorHandlingFeedback.md
index 028a233..e3249cf 100644
--- a/Go2ErrorHandlingFeedback.md
+++ b/Go2ErrorHandlingFeedback.md
@@ -227,6 +227,8 @@
 
 - Gima, "[Procedural code, separate error handling](https://gitlab.com/snippets/1726097)", June 2018
 
+- Konstantin, "[error handling for error-tree](https://github.com/Konstantin8105/Go2ErrorTree)", [Discyssion](https://github.com/golang/go/issues/32099) May 2019
+
 ## Adding your feedback
 
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