diff --git a/docs/user-guide/kustomize.md b/docs/user-guide/kustomize.md
index 9c2bf1fc655a4..647e753649cce 100644
--- a/docs/user-guide/kustomize.md
+++ b/docs/user-guide/kustomize.md
@@ -131,6 +131,9 @@ data:
     kustomize.buildOptions: --load-restrictor LoadRestrictionsNone
     kustomize.buildOptions.v4.4.0: --output /tmp
 ```
+
+After modifying `kustomize.buildOptions`, you may need to restart ArgoCD for the changes to take effect.
+
 ## Custom Kustomize versions
 
 Argo CD supports using multiple Kustomize versions simultaneously and specifies required version per application.