diff --git a/src/Stopwatch_TEST.cc b/src/Stopwatch_TEST.cc
index e51e2a03..22846a3b 100644
--- a/src/Stopwatch_TEST.cc
+++ b/src/Stopwatch_TEST.cc
@@ -155,6 +155,9 @@ TEST(Stopwatch, StartStopReset)
   watch.Start(true);
   EXPECT_TRUE(watch.Running());
   EXPECT_LT(watch.StopTime(), watch.StartTime());
+  // Add a small sleep to make sure that there's is some time elapsed between
+  // calling Start(true) above and ElapsedRunTime() below.
+  std::this_thread::sleep_for(std::chrono::microseconds(1));
   EXPECT_NE(steady_clock::duration::zero(), watch.ElapsedRunTime());
   EXPECT_EQ(steady_clock::duration::zero(), watch.ElapsedStopTime());
 }