diff --git a/install_prereq.sh b/install_prereq.sh
index 2c5fc94..c741e25 100755
--- a/install_prereq.sh
+++ b/install_prereq.sh
@@ -4,7 +4,7 @@ curl -sL https://deb.nodesource.com/setup_11.x | sudo -E bash -
 
 sudo apt-get update
 sudo apt-get upgrade -y
-sudo apt-get install -y dnsmasq hostapd screen curl python3-pip python3-setuptools python3-wheel mosquitto nodejs
+sudo apt-get install -y dnsmasq hostapd screen curl python3-pip python3-setuptools python3-wheel mosquitto nodejs haveged
 
 sudo pip3 install paho-mqtt pyaes tornado