diff --git a/install_full/ubuntu/airtime-full-install b/install_full/ubuntu/airtime-full-install
index 995acddfa..3b94a73e7 100755
--- a/install_full/ubuntu/airtime-full-install
+++ b/install_full/ubuntu/airtime-full-install
@@ -27,7 +27,7 @@ dist=`lsb_release -is`
 if [ "$dist" -eq "Debian" ]; then
     grep "deb http://www.debian-multimedia.org squeeze main non-free" /etc/apt/sources.list
     if [ "$?" -ne "0" ]; then
-        echo "deb http://www.debian-multimedia.org squeeze main non-free" > /etc/apt/sources.list
+        echo "deb http://www.debian-multimedia.org squeeze main non-free" >> /etc/apt/sources.list
     fi
 fi