diff --git a/installJRMC b/installJRMC
index f44ce70..6b7694c 100755
--- a/installJRMC
+++ b/installJRMC
@@ -1613,7 +1613,7 @@ main() {
         ubuntu)
             if ! grep ^deb /etc/apt/sources.list|grep -q universe; then
                 echo "Adding universe repository"
-                sudo add-apt-repository universe
+                sudo add-apt-repository -y universe
             fi
             ;;
         centos)