diff --git a/.travis.yml b/.travis.yml
index c76d10c51..52cb14614 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ language: c
 
 install:
   - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew update > /dev/null; fi
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew install openssl libidn rtmpdump libssh2 c-ares libmetalink libressl nghttp2; fi
+  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew install libtool openssl libidn rtmpdump libssh2 c-ares libmetalink libressl nghttp2; fi
 
 before_script:
   - ./buildconf