diff --git a/src/containerapp/azext_containerapp/_help.py b/src/containerapp/azext_containerapp/_help.py
index 03069c554c6..7b1050d5b75 100644
--- a/src/containerapp/azext_containerapp/_help.py
+++ b/src/containerapp/azext_containerapp/_help.py
@@ -1281,5 +1281,5 @@
           az containerapp list -g MyResourceGroup --environment MyContainerappEnv
     - name: List patchable and non-patchable container apps.
       text: |
-          az containerapp list -g MyResourceGroup --environment MyContainerappEnv --showAll
+          az containerapp list -g MyResourceGroup --environment MyContainerappEnv --show-all
 """
\ No newline at end of file