diff --git a/setup/so-functions b/setup/so-functions
index 53d40be4b..0f06f7861 100755
--- a/setup/so-functions
+++ b/setup/so-functions
@@ -911,6 +911,7 @@ detect_os() {
 		OS=ubuntu
 		if grep -q "UBUNTU_CODENAME=focal" /etc/os-release; then
 			OSVER=focal
+			is_ubuntu=true
 		else
 			info "We do not support your current version of Ubuntu."
 			exit 1