diff --git a/.travis.yml b/.travis.yml
index 99f0fdf..916f948 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,4 @@
 language: rust
 before_script: gem install awesome_bot
+# `crates.io` needs to be whitelisted, because of https://github.com/rust-lang/crates.io/issues/788
 script: awesome_bot -f README.md --allow-dupe --allow-ssl --white-list crates.io