diff --git a/src/auth.php b/src/auth.php
index 45148ae..bef003a 100644
--- a/src/auth.php
+++ b/src/auth.php
@@ -12,7 +12,10 @@ function login()
 
 if (isset($_POST['logout']))
 {
-    session_destroy();
+    if (session_id() != "")
+    {
+        session_destroy();
+    }
 }
 
 session_start();