1 files changed, 1 insertions, 0 deletions

diff --git a/init.php b/init.php
index f0b84368..ab0e4ea7 100644
--- a/init.php
+++ b/init.php
@@ -60,6 +60,7 @@ ini_set('session.use_only_cookies', 1);
 ini_set('session.use_trans_sid', false);
 
 define('SHAARLI_VERSION', ApplicationUtils::getVersion(__DIR__ .'/'. ApplicationUtils::$VERSION_FILE));
+define('SHAARLI_MUTEX_FILE', __FILE__);
 
 session_name('shaarli');
 // Start session if needed (Some server auto-start sessions).