diff --git a/en/chronos.rst b/en/chronos.rst
index 6f844a2faf..8f9fdeec8e 100644
--- a/en/chronos.rst
+++ b/en/chronos.rst
@@ -292,3 +292,6 @@ returned relative to the fixated time::
 
     $time = new Chronos(); // 1975-12-25 00:00:00
     $time = new Chronos('1 hour ago'); // 1975-12-24 23:00:00
+
+To reset the fixation, simply call ``setTestNow()`` again with no parameter or
+with ``null`` as a parameter.