diff --git a/compose_plantuml/__init__.py b/compose_plantuml/__init__.py
index c0b5533..a94c9a2 100755
--- a/compose_plantuml/__init__.py
+++ b/compose_plantuml/__init__.py
@@ -74,7 +74,7 @@ def boundaries(self, compose, group=False, ports=True, volumes=True, notes=False
             port_uml = ''
             port_links = ''
             for service, host, container in sorted(self.ports(compose)):
-                port = host
+                port = host.replace('/', '')
                 if container is not None:
                     port = '{0} : {1}'.format(host, container)
                 port_links += '[{0}] --> {1}\n'.format(service, port)
diff --git a/features/boundaries.feature b/features/boundaries.feature
index ad69725..ec5c715 100644
--- a/features/boundaries.feature
+++ b/features/boundaries.feature
@@ -3,14 +3,14 @@ Feature: Boundaries
   I want to see the boundaries of a system
   so that I know how to interact with it.
 
-  Scenario: Exposed ports
+  Scenario Outline: Exposed ports
     Given a file named "compose.yml" with:
       """
       version: "2"
       services:
         service:
           ports:
-            - 8080
+            - <port>
       """
     When I run `bin/compose_plantuml --boundaries compose.yml`
     Then it should pass with exactly:
@@ -19,29 +19,21 @@ Feature: Boundaries
       cloud system {
         [service]
       }
-      [service] --> 8080
+      [service] --> <resulting port>
 
       """
 
-  Scenario: Alias Ports
-    Given a file named "compose.yml" with:
-      """
-      version: "2"
-      services:
-        service:
-          ports:
-            - 8080:80
-      """
-    When I run `bin/compose_plantuml --boundaries compose.yml`
-    Then it should pass with exactly:
-      """
-      skinparam componentStyle uml2
-      cloud system {
-        [service]
-      }
-      [service] --> 8080 : 80
+    Examples: TCP Port
+      | port | resulting port |
+      | 8080 | 8080           |
 
-      """
+    Examples: UDP Port
+      | port     | resulting port |
+      | 8080/udp | 8080udp        |
+
+    Examples: Alias Port
+      | port    | resulting port |
+      | 8080:80 | 8080 : 80      |
 
   Scenario: Volumes
     Given a file named "compose.yml" with:
diff --git a/setup.py b/setup.py
index 1a4bc3b..508a754 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ def readme():
 
 setup(
     name='compose_plantuml',
-    version='0.0.13',
+    version='0.1.0',
     description='converts docker-compose into plantuml',
     long_description=readme(),
     url='http://github.com/funkwerk/compose_plantuml',