diff --git a/roles/custom/matrix-dendrite/defaults/main.yml b/roles/custom/matrix-dendrite/defaults/main.yml
index a4ab6104c..484a5c9c7 100644
--- a/roles/custom/matrix-dendrite/defaults/main.yml
+++ b/roles/custom/matrix-dendrite/defaults/main.yml
@@ -100,7 +100,7 @@ matrix_dendrite_registration_disabled: true
 matrix_dendrite_enable_registration_captcha: false
 matrix_dendrite_recaptcha_public_key: ""
 matrix_dendrite_recaptcha_private_key: ""
-matrix_dendrite_recaptcha_siteverify_api: "https://www.google.com/recaptcha/api/siteverify"
+matrix_dendrite_recaptcha_siteverify_api: ""
 matrix_dendrite_recaptcha_api_js_url: ""
 matrix_dendrite_recaptcha_form_field: ""
 matrix_dendrite_recaptcha_sitekey_class: ""