diff --git a/pxr/usd/usd/testenv/testUsdFileFormats.py b/pxr/usd/usd/testenv/testUsdFileFormats.py
index f04bbbe579..ebac7ffa16 100644
--- a/pxr/usd/usd/testenv/testUsdFileFormats.py
+++ b/pxr/usd/usd/testenv/testUsdFileFormats.py
@@ -244,7 +244,11 @@ def test_ReloadReplaceUsdUsdaWithUsdc(self):
             'usda')
 
         shutil.copyfile('crate.usd', 'test_replace.usd')
-        self.assertTrue(layer.Reload())
+
+        # Force a reload, otherwise the reload is skipped sometimes due
+        # to file mtimes not changing after copyfile.
+        self.assertTrue(layer.Reload(force=True))
+
         self.assertEqual(
             Usd.UsdFileFormat.GetUnderlyingFormatForLayer(layer), 
             'usdc')