diff --git a/web/src/app/ee/admin/whitelabeling/WhitelabelingForm.tsx b/web/src/app/ee/admin/whitelabeling/WhitelabelingForm.tsx
index 300cd37155d..53209ebfc2d 100644
--- a/web/src/app/ee/admin/whitelabeling/WhitelabelingForm.tsx
+++ b/web/src/app/ee/admin/whitelabeling/WhitelabelingForm.tsx
@@ -73,7 +73,9 @@ export function WhitelabelingForm() {
         }}
         validationSchema={Yup.object().shape({
           auto_scroll: Yup.boolean().nullable(),
-          application_name: Yup.string().nullable(),
+          application_name: Yup.string()
+            .nullable()
+            .length(0, "Application name is required"),
           use_custom_logo: Yup.boolean().required(),
           use_custom_logotype: Yup.boolean().required(),
           custom_header_content: Yup.string().nullable(),