diff --git a/README.md b/README.md
index 4c168ff..5d77fe1 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ Or to recursively clone all the build dependancies:
 
 * use protobuf
 * move edge case mappings to a config file
+* figure out how to detect gooogle.golang.org mapping with 'go list'
 
 ## these are notes from Gohack: mutable checkouts of Go module dependencies