diff --git a/docs/devel/requirements-installation.md b/docs/devel/requirements-installation.md
index d12574f3e6fa4c48954394e82daebe6e2869eb71..03421e070236b47ad309964066bb9ca4f38b3ad1 100644
--- a/docs/devel/requirements-installation.md
+++ b/docs/devel/requirements-installation.md
@@ -141,7 +141,7 @@ $ wget https://storage.googleapis.com/golang/go1.6.2.linux-amd64.tar.gz
 ```
 $ go version
 ```
-Should return something like `go version go1.6.2 linux/amd64`
+Should return something like `go version go1.6.2 linux/amd64`. Note that if you already had Go installed, ensure that `GO15VENDOREXPERIMENT` is unset.
 
 ### Install Node and NPM
 For some reason doing this...