diff --git a/engine/swarm/swarm-tutorial/delete-service.md b/engine/swarm/swarm-tutorial/delete-service.md
index a1592bc59d..357e855298 100644
--- a/engine/swarm/swarm-tutorial/delete-service.md
+++ b/engine/swarm/swarm-tutorial/delete-service.md
@@ -28,7 +28,24 @@ removed the service. The CLI returns a message that the service is not found:
     Error: no such service: helloworld
     ```
 
+4.  Even though the service no longer exists, the task containers take a few
+    seconds to clean up. You can use `docker ps` to verify when they are gone.
+    
+    ```bash
+    $ docker ps
+    
+        CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
+        db1651f50347        alpine:latest       "ping docker.com"        44 minutes ago      Up 46 seconds                           helloworld.5.9lkmos2beppihw95vdwxy1j3w
+        43bf6e532a92        alpine:latest       "ping docker.com"        44 minutes ago      Up 46 seconds                           helloworld.3.a71i8rp6fua79ad43ycocl4t2
+        5a0fb65d8fa7        alpine:latest       "ping docker.com"        44 minutes ago      Up 45 seconds                           helloworld.2.2jpgensh7d935qdc857pxulfr
+        afb0ba67076f        alpine:latest       "ping docker.com"        44 minutes ago      Up 46 seconds                           helloworld.4.1c47o7tluz7drve4vkm2m5olx
+        688172d3bfaa        alpine:latest       "ping docker.com"        45 minutes ago      Up About a minute                       helloworld.1.74nbhb3fhud8jfrhigd7s29we
+    
+    $ docker ps
+       CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               
+
+    ```
 ## What's next?
 
 In the next step of the tutorial, you set up a new service and apply a
-[rolling update](rolling-update.md).
\ No newline at end of file
+[rolling update](rolling-update.md).