diff --git a/lamp-xenial64-fpm/bootstrap.sh b/lamp-xenial64-fpm/bootstrap.sh
index 92bae48..941b9d4 100644
--- a/lamp-xenial64-fpm/bootstrap.sh
+++ b/lamp-xenial64-fpm/bootstrap.sh
@@ -55,7 +55,7 @@ fi
 if [ ! -f /usr/bin/php ]; then
 	# Install
     sudo apt-get update    
-    sudo apt-get -y install htop unzip apache2 php7.0-fpm php7.0-cli php-apcu php7.0-curl php7.0-xmlrpc php7.0-xsl php7.0-mysql
+    sudo apt-get -y install htop unzip apache2 php7.0-fpm php7.0-cli php7.0-curl php7.0-xmlrpc php7.0-xsl php7.0-mysql php-apcu php-mbstring
     if [ $VARGANTDEV -eq 1 ]; then
     	sudo apt-get -y install php-xdebug
     fi