diff --git a/Locker.py b/Locker.py
index f8e97ce..fd2f5ed 100644
--- a/Locker.py
+++ b/Locker.py
@@ -54,6 +54,9 @@ class Locker(object):
             return True
 
     def _checkLogout(self):
+        if not self.locked:
+            return False
+
         self.currentLogoutTimeout = self.currentLogoutTimeout - 1
         if self.updateLogoutTimeout is not None:
             self.updateLogoutTimeout(self.currentLogoutTimeout)