diff --git a/src/Subfission/Cas/CasManager.php b/src/Subfission/Cas/CasManager.php
index 56d87a4..9231666 100644
--- a/src/Subfission/Cas/CasManager.php
+++ b/src/Subfission/Cas/CasManager.php
@@ -177,6 +177,15 @@ protected function parseConfig(array $config)
             'cas_real_hosts'       => '',
         ];
 
+        /*
+         * If cas_client_service is a string, see if it contains a comma and split on it.
+         * Only do this when it looks like we have a comma separated list. Passing in an array
+         * triggers autodiscovery downstream and we want to avoid that if possible.
+         */
+        if (is_string($config['cas_client_service']) && strpos($config['cas_client_service'], ',') !== false) {
+            $config['cas_client_service'] = explode(',', $config['cas_client_service']);
+        }
+
         $this->config = array_merge($defaults, $config);
     }
 
diff --git a/src/config/config.php b/src/config/config.php
index a58a98e..56b1754 100644
--- a/src/config/config.php
+++ b/src/config/config.php
@@ -65,7 +65,7 @@
     |--------------------------------------------------------------------------
     | Example: 'http://localhost', 'https://example.com:8888'
     */
-    'cas_client_service' => explode(',', env('CAS_CLIENT_SERVICE', 'http://localhost')),
+    'cas_client_service' => env('CAS_CLIENT_SERVICE', 'http://localhost'),
 
 
     /*