diff --git a/scripts/install.sh b/scripts/install.sh
index 9f54ce5827..0cb0f915f0 100644
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -180,7 +180,7 @@ install_cuda_driver_apt() {
     case $1 in
         debian)
             status 'Enabling contrib sources...'
-            $SUDO sed 's/main/contrib/' < /etc/apt/sources.list | sudo tee /etc/apt/sources.list.d/contrib.list > /dev/null
+            $SUDO sed 's/main/contrib/' < /etc/apt/sources.list | $SUDO tee /etc/apt/sources.list.d/contrib.list > /dev/null
             ;;
     esac