diff --git a/http.tf b/http.tf
index f4d2a5c..884e70d 100644
--- a/http.tf
+++ b/http.tf
@@ -19,6 +19,7 @@ module "http" {
       },
       length(module.auth) == 0 ? {} : {
         FUN_AUTH_COGNITO_USER_POOL_ID = module.auth[0].user_pool.id
+        FUN_AUTH_URL                  = module.auth[0].url
       }
     )
   })
@@ -31,6 +32,7 @@ module "http" {
       },
       length(module.auth) == 0 ? {} : {
         FUN_AUTH_COGNITO_USER_POOL_ID = module.auth[0].user_pool.id
+        FUN_AUTH_URL                  = module.auth[0].url
       }
     )
   })
diff --git a/output.tf b/output.tf
index 6eb57bf..9ef8546 100644
--- a/output.tf
+++ b/output.tf
@@ -65,6 +65,7 @@ output "backend_environment_vars" {
     },
     length(module.auth) == 0 ? {} : {
       FUN_AUTH_COGNITO_USER_POOL_ID = module.auth[0].user_pool.id
+      FUN_AUTH_URL                  = module.auth[0].url
     }
   )
 }
diff --git a/ws.tf b/ws.tf
index 979c4fe..242142f 100644
--- a/ws.tf
+++ b/ws.tf
@@ -15,6 +15,7 @@ module "ws" {
       var.ws.rpc.environment == null ? {} : var.ws.rpc.environment,
       length(module.auth) == 0 ? {} : {
         FUN_AUTH_COGNITO_USER_POOL_ID = module.auth[0].user_pool.id
+        FUN_AUTH_URL                  = module.auth[0].url
       }
     )
   })
@@ -24,6 +25,7 @@ module "ws" {
       var.ws.event_authorizer.environment == null ? {} : var.ws.event_authorizer.environment,
       length(module.auth) == 0 ? {} : {
         FUN_AUTH_COGNITO_USER_POOL_ID = module.auth[0].user_pool.id
+        FUN_AUTH_URL                  = module.auth[0].url
       }
     )
   })