diff --git a/guac-install.sh b/guac-install.sh
index 07e68b4..d9d3da2 100644
--- a/guac-install.sh
+++ b/guac-install.sh
@@ -11,7 +11,8 @@ debconf-set-selections <<< "mysql-server mysql-server/root_password_again passwo
 read -s -p "Enter the password that will be used for the Guacamole database: " guacdbuserpassword
 
 # Install Features
-apt-get -y install libcairo2-dev libjpeg-turbo8-dev libpng12-dev libossp-uuid-dev libavcodec-dev libavutil-dev \
+apt-get update
+apt-get -y install build-essential libcairo2-dev libjpeg-turbo8-dev libpng12-dev libossp-uuid-dev libavcodec-dev libavutil-dev \
 libswscale-dev libfreerdp-dev libpango1.0-dev libssh2-1-dev libtelnet-dev libvncserver-dev libpulse-dev libssl-dev \
 libvorbis-dev libwebp-dev mysql-server mysql-client mysql-common mysql-utilities tomcat8 freerdp ghostscript jq wget curl