diff --git a/travis/setup-webserver.sh b/travis/setup-webserver.sh
index f1bf69c575..9802fab749 100755
--- a/travis/setup-webserver.sh
+++ b/travis/setup-webserver.sh
@@ -1,55 +1,80 @@
 #!/bin/bash
 #
-# @copyright (c) 2013 phpBB Group
+# @copyright (c) 2014 phpBB Group
 # @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
 #
 set -e
 set -x
 
+if [ "$TRAVIS_PHP_VERSION" = 'hhvm' ]
+then
+	# Add PPA providing dependencies for recent HHVM on Ubuntu 12.04.
+	sudo add-apt-repository -y ppa:mapnik/boost
+fi
+
 sudo apt-get update
 sudo apt-get install -y nginx realpath
 
 sudo service nginx stop
 
 DIR=$(dirname "$0")
-PHPBB_ROOT_PATH=$(realpath "$DIR/../phpBB")
-
-NGINX_CONF="/etc/nginx/sites-enabled/default"
-
-PHP_FPM_BIN="$HOME/.phpenv/versions/$TRAVIS_PHP_VERSION/sbin/php-fpm"
-PHP_FPM_CONF="$DIR/php-fpm.conf"
-PHP_FPM_SOCK=$(realpath "$DIR")/php-fpm.sock
-
 USER=$(whoami)
+PHPBB_ROOT_PATH=$(realpath "$DIR/../phpBB")
+NGINX_CONF="/etc/nginx/sites-enabled/default"
+APP_SOCK=$(realpath "$DIR")/php-app.sock
 
-# php-fpm configuration
+if [ "$TRAVIS_PHP_VERSION" = 'hhvm' ]
+then
+	# Upgrade to a recent stable version of HHVM
+	sudo apt-get -o Dpkg::Options::="--force-confnew" \
+		install -y hhvm=3.0.0~precise
+
+	# MySQLi is broken in HHVM 3.0.0~precise and still does not work for us in
+	# 2014.03.28~saucy, i.e. needs more work. Use MySQL extension for now.
+	sed -i "s/mysqli/mysql/" "$DIR/phpunit-mysql-travis.xml"
+
+	HHVM_LOG=$(realpath "$DIR")/hhvm.log
+
+	sudo hhvm \
+		--mode daemon \
+		--user "$USER" \
+		-vServer.Type=fastcgi \
+		-vServer.FileSocket="$APP_SOCK" \
+		-vLog.File="$HHVM_LOG"
+else
+	# php-fpm
+	PHP_FPM_BIN="$HOME/.phpenv/versions/$TRAVIS_PHP_VERSION/sbin/php-fpm"
+	PHP_FPM_CONF="$DIR/php-fpm.conf"
+
+	echo "
+		[global]
+
+		[travis]
+		user = $USER
+		group = $USER
+		listen = $APP_SOCK
+		pm = static
+		pm.max_children = 2
+
+		php_admin_value[memory_limit] = 128M
+	" > $PHP_FPM_CONF
+
+	sudo $PHP_FPM_BIN \
+		--fpm-config "$DIR/php-fpm.conf"
+fi
+
+# nginx
 echo "
-[global]
+	server {
+		listen	80;
+		root	$PHPBB_ROOT_PATH/;
+		index	index.php index.html;
 
-[travis]
-user = $USER
-group = $USER
-listen = $PHP_FPM_SOCK
-pm = static
-pm.max_children = 2
-
-php_admin_value[memory_limit] = 128M
-" > $PHP_FPM_CONF
-
-# nginx configuration
-echo "
-server {
-	listen	80;
-	root	$PHPBB_ROOT_PATH/;
-	index	index.php index.html;
-
-	location ~ \.php {
-		fastcgi_pass	unix:$PHP_FPM_SOCK;
-		include			fastcgi_params;
+		location ~ \.php {
+			fastcgi_pass	unix:$APP_SOCK;
+			include			fastcgi_params;
+		}
 	}
-}
 " | sudo tee $NGINX_CONF > /dev/null
 
-# Start daemons
-sudo $PHP_FPM_BIN --fpm-config "$DIR/php-fpm.conf"
 sudo service nginx start