diff --git a/web/src/app/ee/admin/whitelabeling/WhitelabelingForm.tsx b/web/src/app/ee/admin/whitelabeling/WhitelabelingForm.tsx
index 53209ebfc..c2a0f4630 100644
--- a/web/src/app/ee/admin/whitelabeling/WhitelabelingForm.tsx
+++ b/web/src/app/ee/admin/whitelabeling/WhitelabelingForm.tsx
@@ -74,8 +74,9 @@ export function WhitelabelingForm() {
         validationSchema={Yup.object().shape({
           auto_scroll: Yup.boolean().nullable(),
           application_name: Yup.string()
-            .nullable()
-            .length(0, "Application name is required"),
+            .required("Application name is required")
+            .trim()
+            .min(1, "Application name cannot be empty"),
           use_custom_logo: Yup.boolean().required(),
           use_custom_logotype: Yup.boolean().required(),
           custom_header_content: Yup.string().nullable(),