diff --git a/test/e2e/app_management_ns_test.go b/test/e2e/app_management_ns_test.go
index 15cbd43534025..6312303c71a2c 100644
--- a/test/e2e/app_management_ns_test.go
+++ b/test/e2e/app_management_ns_test.go
@@ -2448,6 +2448,7 @@ func TestNamespacedDisableManifestGeneration(t *testing.T) {
 		}).
 		When().
 		And(func() {
+			time.Sleep(3 * time.Second)
 			SetEnableManifestGeneration(map[ApplicationSourceType]bool{
 				ApplicationSourceTypeKustomize: false,
 			})