diff --git a/test/lib/mayaUsd/render/mayaToHydra/testOpenPBRSurface.py b/test/lib/mayaUsd/render/mayaToHydra/testOpenPBRSurface.py
index 3511074c5..ddeb3be0b 100644
--- a/test/lib/mayaUsd/render/mayaToHydra/testOpenPBRSurface.py
+++ b/test/lib/mayaUsd/render/mayaToHydra/testOpenPBRSurface.py
@@ -18,6 +18,7 @@
 import fixturesUtils
 import mtohUtils
 import mayaUtils
+import platform
 
 class TestOpenPBRSurface(mtohUtils.MayaHydraBaseTestCase): #Subclassing mtohUtils.MayaHydraBaseTestCase to be able to call self.assertSnapshotClose
     # MayaHydraBaseTestCase.setUpClass requirement.