diff --git a/README.md b/README.md
index b9699c3..0417425 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,9 @@ DKIM package for Golang
 ```
  	go get https://github.com/toorop/go-dkim
 ```
+Warning: you need to use Go 1.4.2-master or 1.4.3 (when it will be available)
+see https://github.com/golang/go/issues/10482 fro more info.
+
 ### Sign email
 
 ```go