diff --git a/scripts/installscripts/tests/run_installation_tests.sh b/scripts/installscripts/tests/run_installation_tests.sh
index 5aacab1e9..fb711048b 100644
--- a/scripts/installscripts/tests/run_installation_tests.sh
+++ b/scripts/installscripts/tests/run_installation_tests.sh
@@ -13,7 +13,7 @@ echo $PWD
 echo "samba-common samba-common/dhcp boolean false" | sudo debconf-set-selections
 # No interactive frontend
 export DEBIAN_FRONTEND=noninteractive
-echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
+echo 'debconf debconf/frontend select Noninteractive' | sudo debconf-set-selections
 
 # Run installation (in interactive mode)
 # y confirm interactive
diff --git a/scripts/installscripts/tests/run_installation_tests2.sh b/scripts/installscripts/tests/run_installation_tests2.sh
index 1c337c504..58c2a378d 100644
--- a/scripts/installscripts/tests/run_installation_tests2.sh
+++ b/scripts/installscripts/tests/run_installation_tests2.sh
@@ -13,7 +13,7 @@ echo $PWD
 echo "samba-common samba-common/dhcp boolean false" | sudo debconf-set-selections
 # No interactive frontend
 export DEBIAN_FRONTEND=noninteractive
-echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
+echo 'debconf debconf/frontend select Noninteractive' | sudo debconf-set-selections
 
 # Run installation (in interactive mode)
 # y confirm interactive