diff --git a/setup/so-functions b/setup/so-functions
index 533ca110a..315334a18 100755
--- a/setup/so-functions
+++ b/setup/so-functions
@@ -2215,7 +2215,7 @@ mark_version() {
 update_sudoers_for_testing() {
 	if [ -n "$TESTING" ]; then
 		info "Ensuring $INSTALLUSERNAME has password-less sudo access for automated testing purposes."
-		sed -i "s/^$INSTALLUSERNAME   ALL=(ALL) ALL/^$INSTALLUSERNAME   ALL=(ALL) NOPASSWD:ALL/" /etc/sudoers
+		sed -i "s/^$INSTALLUSERNAME   ALL=(ALL)       ALL/$INSTALLUSERNAME   ALL=(ALL) NOPASSWD: ALL/" /etc/sudoers
 	fi
 }