diff --git a/.travis.yml b/.travis.yml
index 62b6624ed..490aaa123 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,6 +18,6 @@ install:
 script:
 - bundle exec jekyll build 2> error.log
 - cat >&2 error.log
-- ( ! grep -qie Error error.log )
+- ( ! grep -qie Error -e Warn error.log )
 - find ./_site \( -type d \( -name events -o -name training \) -prune -false \) -o \( -type f ! -name error.log -empty \)
 - find ./_site \( -type d \( -name events -o -name training \) -prune -false \) -o \( -type f ! -name error.log -empty \) | ( ! read )