diff --git a/.travis.yml b/.travis.yml
index 342c420..569ae07 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,5 @@
+# This deliberately is not "python" as a work-around to support
+# multi-os builds with custom Python versions in Travis CI.
 language: cpp
 
 os: