diff --git a/.travis.yml b/.travis.yml
index d7c472cd72..616bd7d4db 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,7 @@ before_script:
   - sh -c "if [ '$DB' = 'postgres' ]; then psql -c 'DROP DATABASE IF EXISTS phpbb_tests;' -U postgres; fi"
   - sh -c "if [ '$DB' = 'postgres' ]; then psql -c 'create database phpbb_tests;' -U postgres; fi"
   - sh -c "if [ '$DB' = 'mysql' ]; then mysql -e 'create database IF NOT EXISTS phpbb_tests;'; fi"
+  - travis/install-php-extensions.sh
   - pyrus set auto_discover 1
   - pyrus install --force phpunit/DbUnit
   - phpenv rehash
diff --git a/travis/install-php-extensions.sh b/travis/install-php-extensions.sh
new file mode 100755
index 0000000000..55955c2905
--- /dev/null
+++ b/travis/install-php-extensions.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+# @copyright (c) 2013 phpBB Group
+# @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+#
+set -e
+
+function add_ext_to_php_ini
+{
+	echo "extension=$1.so" >> `php --ini | grep "Loaded Configuration" | sed -e "s|.*:\s*||"`
+}
+
+# redis
+git clone git://github.com/nicolasff/phpredis.git
+cd phpredis
+phpize
+./configure
+make
+make install
+cd ..
+add_ext_to_php_ini 'redis'