diff --git a/docker-hub/index.md b/docker-hub/index.md
index 1d672de31d..12668bc7a8 100644
--- a/docker-hub/index.md
+++ b/docker-hub/index.md
@@ -136,12 +136,11 @@ Docker Hub.
 
 1. Start by creating a [Dockerfile](../engine/reference/builder/) to specify your application as shown below:
 
-    ```shell
-    cat > Dockerfile <<EOF
-    FROM busybox
-    CMD echo "Hello world! This is my first Docker image."
-    EOF
-    ```
+   ```dockerfile
+   # syntax=docker/dockerfile:1
+   FROM busybox
+   CMD echo "Hello world! This is my first Docker image."
+   ```
 
 2. Run `docker build -t <your_username>/my-private-repo .` to build your Docker
    image.
diff --git a/docker-hub/vulnerability-scanning.md b/docker-hub/vulnerability-scanning.md
index 77f906514e..16ca0f6f84 100644
--- a/docker-hub/vulnerability-scanning.md
+++ b/docker-hub/vulnerability-scanning.md
@@ -42,14 +42,14 @@ To scan an image for vulnerabilities, push the image to Docker Hub:
 2. Use the command line to log into your Docker account. See [docker login](../engine/reference/commandline/login.md) for more information.
 3. Tag the image that you’d like to scan. For example, to tag a Redis image, run:
 
-    ```shell
-    docker tag redis <your-Docker-ID>/<your-repo-name>:latest
+    ```console
+    $ docker tag redis <your-Docker-ID>/<your-repo-name>:latest
     ```
 
 4. Push the image to Docker Hub to trigger vulnerability scanning on the image:
 
-    ```shell
-    docker push <your-Docker-ID>/<your-repo-name>:latest
+    ```console
+    $ docker push <your-Docker-ID>/<your-repo-name>:latest
     ```
 
 ## View the vulnerability report