1 files changed, 1 insertions, 1 deletions
diff --git a/lib.php b/lib.php
index dac2441..ad5e5ab 100644
--- a/lib.php
+++ b/lib.php
@@ -232,7 +232,7 @@ function plural($num)
 function key2timestamp($key) {
     global $tz;
 
-    $date = DateTime::createFromFormat("YmdHis", $key+0, $tz);
+    $date = DateTime::createFromFormat("YmdHis", (int)$key, $tz);
     if ($date === false)
         return null;