diff --git a/install_orbit_environment.sh b/install_orbit_environment.sh
index 75c39c4..5eeb0f6 100644
--- a/install_orbit_environment.sh
+++ b/install_orbit_environment.sh
@@ -92,6 +92,7 @@ fi
 if [ -z $(which rvm) ]; then
 	sudo apt-get install software-properties-common -y
 	sudo apt-get install --reinstall ca-certificates -y
+	sudo apt-get install dpkg -y
 	sudo apt-add-repository -y ppa:rael-gc/rvm
 	sudo apt-get update
 	sudo apt-get install rvm -y