diff --git a/qhub/template/stages/06-kubernetes-keycloak-configuration/variables.tf b/qhub/template/stages/06-kubernetes-keycloak-configuration/variables.tf
index 1b84ddde60..888f424cfe 100644
--- a/qhub/template/stages/06-kubernetes-keycloak-configuration/variables.tf
+++ b/qhub/template/stages/06-kubernetes-keycloak-configuration/variables.tf
@@ -11,5 +11,5 @@ variable "keycloak_groups" {
 
 variable "authentication" {
   description = "Authentication configuration for keycloak"
-  type = map
+  type = any
 }