diff --git a/lib/api/organization.ts b/lib/api/organization.ts
index 02bde22..3cc5003 100644
--- a/lib/api/organization.ts
+++ b/lib/api/organization.ts
@@ -87,13 +87,14 @@ export async function sendInvitation(
   role: string = 'member',
   captcha?: { captcha_id?: string, captcha_solution?: string, captcha_token?: string }
 ): Promise<OrganizationInvitation> {
-  const body = {
+  const body: any = {
     email,
-    role,
-    ...(captcha?.captcha_id ? { captcha_id: captcha.captcha_id } : {}),
-    ...(captcha?.captcha_solution ? { captcha_solution: captcha.captcha_solution } : {}),
-    ...(captcha?.captcha_token ? { captcha_token: captcha.captcha_token } : {})
+    role
   }
+
+  if (captcha?.captcha_id) body.captcha_id = captcha.captcha_id
+  if (captcha?.captcha_solution) body.captcha_solution = captcha.captcha_solution
+  if (captcha?.captcha_token) body.captcha_token = captcha.captcha_token
   
   return await authFetch<OrganizationInvitation>(`/auth/organizations/${organizationId}/invites`, {
     method: 'POST',