diff --git a/content/en/docs/tasks/run-application/update-api-object-kubectl-patch.md b/content/en/docs/tasks/run-application/update-api-object-kubectl-patch.md
index 3c59c00e06..81007d63a4 100644
--- a/content/en/docs/tasks/run-application/update-api-object-kubectl-patch.md
+++ b/content/en/docs/tasks/run-application/update-api-object-kubectl-patch.md
@@ -311,7 +311,7 @@ The following commands are equivalent:
 
 
 ```shell
-kubectl patch deployment patch-demo --patch "$(cat patch-file.yaml)"
+kubectl patch deployment patch-demo --patch "$(cat patch-file.json)"
 kubectl patch deployment patch-demo --patch 'spec:\n template:\n  spec:\n   containers:\n   - name: patch-demo-ctr-2\n     image: redis'
 
 kubectl patch deployment patch-demo --patch "$(cat patch-file.json)"