diff --git a/unittest/python/python-commands.py b/unittest/python/python-commands.py
index bd8512894f..58a0772510 100644
--- a/unittest/python/python-commands.py
+++ b/unittest/python/python-commands.py
@@ -356,18 +356,16 @@ create_atoms 1 single &
 
     def test_extract_box_triclinic(self):
         self.lmp.command("boundary p p p")
-        self.lmp.command("region box block 0 2 0 2 0 2")
+        self.lmp.command("region box prism 0 2 0 2 0 2 0.1 0.2 0.3")
         self.lmp.command("create_box 1 box")
-        self.lmp.command("change_box all triclinic")
-        self.lmp.command("change_box all xy final 0.1 yz final 0.2 xz final 0.3")
 
         boxlo, boxhi, xy, yz, xz, periodicity, box_change = self.lmp.extract_box()
 
         self.assertEqual(boxlo, [0.0, 0.0, 0.0])
         self.assertEqual(boxhi, [2.0, 2.0, 2.0])
         self.assertEqual(xy, 0.1)
-        self.assertEqual(yz, 0.2)
-        self.assertEqual(xz, 0.3)
+        self.assertEqual(xz, 0.2)
+        self.assertEqual(yz, 0.3)
         self.assertEqual(periodicity, [1, 1, 1])
         self.assertEqual(box_change, 0)