diff --git a/.travis.yml b/.travis.yml
index 7b007da..b43d358 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,6 +16,7 @@ install:
   - export PATH=/tmp/emacs/bin:${PATH}
   - if ! emacs -Q --batch --eval "(require 'cl-lib)" ; then
         curl -Lo cl-lib.el http://elpa.gnu.org/packages/cl-lib-0.5.el ;
+        export warnings="'(not cl-functions)" ;
     fi
   - if ! emacs -Q --batch --eval "(require 'ert)" ; then
         curl -LO https://raw.githubusercontent.com/ohler/ert/c619b56c5bc6a866e33787489545b87d79973205/lisp/emacs-lisp/ert.el &&
diff --git a/Rakefile b/Rakefile
index f88237b..df4bb7f 100644
--- a/Rakefile
+++ b/Rakefile
@@ -99,6 +99,7 @@ desc "Compile yasnippet.el into yasnippet.elc"
 
 rule '.elc' => '.el' do |t|
   sh "#{$EMACS} --batch -L . --eval \"(setq byte-compile-error-on-warn t)\"" +
+     " --eval \"(setq byte-compile-warnings #{ENV['warnings']})\"" +
      " -f batch-byte-compile #{t.source}"
 end
 task :compile => FileList["yasnippet.el"].ext('elc')