diff --git a/tests/unit/20_nginx-vhosts_1.bats b/tests/unit/20_nginx-vhosts_1.bats
index 17c576ed2..3b6571e97 100644
--- a/tests/unit/20_nginx-vhosts_1.bats
+++ b/tests/unit/20_nginx-vhosts_1.bats
@@ -10,6 +10,7 @@ setup() {
 }
 
 teardown() {
+  detach_delete_network
   destroy_app
   [[ -f "$DOKKU_ROOT/VHOST.bak" ]] && mv "$DOKKU_ROOT/VHOST.bak" "$DOKKU_ROOT/VHOST" && chown dokku:dokku "$DOKKU_ROOT/VHOST"
   [[ -f "$DOKKU_ROOT/HOSTNAME.bak" ]] && mv "$DOKKU_ROOT/HOSTNAME.bak" "$DOKKU_ROOT/HOSTNAME" && chown dokku:dokku "$DOKKU_ROOT/HOSTNAME"
@@ -130,3 +131,13 @@ teardown() {
   assert_http_success http://www.test.app.dokku.me:3003
 
 }
+
+@test "(nginx-vhosts) nginx:build-config (multiple networks)" {
+  deploy_app
+
+  create_attach_network
+  run dokku nginx:build-config "$TEST_APP"
+  echo "output: "$output
+  echo "status: "$status
+  assert_success
+}
diff --git a/tests/unit/test_helper.bash b/tests/unit/test_helper.bash
index ab4dbb5b5..247697578 100644
--- a/tests/unit/test_helper.bash
+++ b/tests/unit/test_helper.bash
@@ -11,6 +11,7 @@ PLUGIN_CORE_AVAILABLE_PATH=${PLUGIN_CORE_AVAILABLE_PATH:="$PLUGIN_CORE_PATH/avai
 CUSTOM_TEMPLATE_SSL_DOMAIN=customssltemplate.dokku.me
 UUID=$(tr -dc 'a-z0-9' < /dev/urandom | fold -w 32 | head -n 1)
 TEST_APP="rdmtestapp-${UUID}"
+TEST_NETWORK="test-network-${UUID}"
 SKIPPED_TEST_ERR_MSG="previous test failed! skipping remaining tests..."
 
 # global setup() and teardown()
@@ -378,3 +379,45 @@ build_nginx_config() {
   dokku domains:setup "$TEST_APP"
   dokku nginx:build-config "$TEST_APP"
 }
+
+create_network() {
+  local NETWORK_NAME="$1:=$TEST_NETWORK"
+
+  NETWORK=$(docker network ls -q -f name="$NETWORK_NAME")
+  [[ -z "$NETWORK" ]] && docker network create "$NETWORK_NAME"
+}
+
+attach_network() {
+  local NETWORK_NAME="$1:=$TEST_NETWORK"
+
+  NETWORK=$(docker network ls -q -f name="$NETWORK_NAME")
+  [[ -n "$NETWORK" ]] && docker network connect "$NETWORK_NAME" "${TEST_APP}.web.1"
+}
+
+create_attach_network() {
+  local NETWORK_NAME="$1:=$TEST_NETWORK"
+
+  create_network "$NETWORK_NAME"
+  attach_network "$NETWORK_NAME"
+}
+
+delete_network() {
+  local NETWORK_NAME="$1:=$TEST_NETWORK"
+
+  NETWORK=$(docker network ls -q -f name="$NETWORK_NAME")
+  [[ -n "$NETWORK" ]] && docker network rm "$NETWORK_NAME"
+}
+
+detach_network() {
+  local NETWORK_NAME="$1:=$TEST_NETWORK"
+
+  NETWORK=$(docker network ls -q -f name="$NETWORK_NAME")
+  [[ -z "$NETWORK" ]] && docker network disconnect "$NETWORK_NAME" "${TEST_APP}.web.1"
+}
+
+detach_delete_network() {
+  local NETWORK_NAME="$1:=$TEST_NETWORK"
+
+  detach_network "$NETWORK_NAME"
+  delete_network "$NETWORK_NAME"
+}