diff --git a/src/GitList/Application.php b/src/GitList/Application.php
index ef43d79..dc0870a 100644
--- a/src/GitList/Application.php
+++ b/src/GitList/Application.php
@@ -41,7 +41,7 @@ class Application extends SilexApplication
         $repositories = $config->get('git', 'repositories');
 
         $cached_repos = $config->get('app', 'cached_repos');
-        if ( !isset( $cached_repos ) ) {
+        if ( false === $cached_repos || empty( $cached_repos) ) {
             $cached_repos = $root . DIRECTORY_SEPARATOR . 'cache' . DIRECTORY_SEPARATOR . 'repos.json';
         }
 
diff --git a/tests/InterfaceTest.php b/tests/InterfaceTest.php
index a15296b..9df9d51 100644
--- a/tests/InterfaceTest.php
+++ b/tests/InterfaceTest.php
@@ -109,6 +109,8 @@ class InterfaceTest extends WebTestCase
         $repository->setConfig('user.email', 'luke@rebel.org');
         $repository->addAll();
         $repository->commit("Initial commit");
+
+		$git->deleteCached();
     }
 
     public function createApplication()