diff --git a/roles/matrix-ldap-registration-proxy/vars/main.yml b/roles/matrix-ldap-registration-proxy/vars/main.yml
deleted file mode 100644
index 3adc735e..00000000
--- a/roles/matrix-ldap-registration-proxy/vars/main.yml
+++ /dev/null
@@ -1,5 +0,0 @@
----
-
-# Doing `|from_yaml` when the extension contains nothing yields an empty string ("").
-# We need to ensure it's a dictionary or `|combine` (when building `matrix_ma1sd_configuration`) will fail later.
-matrix_ma1sd_configuration_extension: "{{ matrix_ma1sd_configuration_extension_yaml | from_yaml if matrix_ma1sd_configuration_extension_yaml | from_yaml else {} }}"