diff --git a/setup/so-functions b/setup/so-functions
index da935518d..3f3b068d4 100755
--- a/setup/so-functions
+++ b/setup/so-functions
@@ -404,7 +404,7 @@ collect_dns_domain() {
 }
 
 collect_dockernet() {
-	if whiptail_dockernet_check; then
+	if ! whiptail_dockernet_check; then
 		whiptail_dockernet_net
 
 		while ! valid_ip4 "$DOCKERNET"; do