diff --git a/tests/sys_time_test.cpp b/tests/sys_time_test.cpp
index bb142bc..18fbe10 100644
--- a/tests/sys_time_test.cpp
+++ b/tests/sys_time_test.cpp
@@ -63,7 +63,7 @@
     tv2.tv_usec += 1000000;
   }
 
-  // Should be less than (a very generous, to try to avoid flakiness) 1000us.
+  // Should be less than (a very generous, to try to avoid flakiness) 2ms (2000us).
   ASSERT_EQ(0, tv2.tv_sec);
-  ASSERT_LT(tv2.tv_usec, 1000);
+  ASSERT_LT(tv2.tv_usec, 2000);
 }