diff --git a/tests/events/stopwatch.cpp b/tests/events/stopwatch.cpp
index 6b6a47612b..0b608f3352 100644
--- a/tests/events/stopwatch.cpp
+++ b/tests/events/stopwatch.cpp
@@ -153,7 +153,7 @@ void StopWatchTestCase::RestartBug()
     WX_ASSERT_MESSAGE
     (
         ("Actual time value is %ld", t),
-        t >= offset + sleepTime
+        t >= offset + sleepTime - tolerance
     );
 
     // As above, this is not actually due to the fact of the test being