diff --git a/slides/intro/Working_With_Volumes.md b/slides/intro/Working_With_Volumes.md
index 314c5871..214c778a 100644
--- a/slides/intro/Working_With_Volumes.md
+++ b/slides/intro/Working_With_Volumes.md
@@ -100,7 +100,7 @@ class: extra-details
 Let's start a Tomcat container:
 
 ```bash
-$ docker run --name webapp -d -p 8080:8080 -v /usr/local/tomcat/logs
+$ docker run --name webapp -d -p 8080:8080 -v /usr/local/tomcat/logs tomcat
 ```
 
 Now, start an `alpine` container accessing the same volume:
diff --git a/slides/swarm/firstservice.md b/slides/swarm/firstservice.md
index 4385c3b7..d217e298 100644
--- a/slides/swarm/firstservice.md
+++ b/slides/swarm/firstservice.md
@@ -174,7 +174,7 @@ class: extra-details
 
   - great in headless scripts (where nobody's watching anyway)
 
-.warning[`--detach=false` does not complete *faster*. It just *doesn't wait* for completion.]
+.warning[`--detach=true` does not complete *faster*. It just *doesn't wait* for completion.]
 
 ---
 
@@ -203,7 +203,7 @@ class: extra-details
 
 - And then to 4 copies per node:
   ```bash
-  docker service update pingpong --replicas 15 --detach=true
+  docker service update pingpong --replicas 20 --detach=true
   ```
 
 ]