diff --git a/tests/test_pylammpsmpi_local.py b/tests/test_pylammpsmpi_local.py
index 91552c7..39e0e54 100644
--- a/tests/test_pylammpsmpi_local.py
+++ b/tests/test_pylammpsmpi_local.py
@@ -57,7 +57,7 @@ def test_extract_variable(self):
         self.assertEqual(np.round(x, 2), 1.13)
         x = self.lmp.extract_variable("fx", "all", 1)
         if sys.version_info >= (3, 11):
-            self.assertEqual(len(x), 512)
+            self.assertEqual(len(x), 256)
             self.assertEqual(np.round(x[0], 2), -0.26)
 
     def test_scatter_atoms(self):