diff --git a/unittest/python/CMakeLists.txt b/unittest/python/CMakeLists.txt
index 7f9b5e71b2..3fc0f6ba58 100644
--- a/unittest/python/CMakeLists.txt
+++ b/unittest/python/CMakeLists.txt
@@ -98,14 +98,10 @@ if(Python_EXECUTABLE)
            WORKING_DIRECTORY ${EXECUTABLE_OUTPUT_PATH})
   set_tests_properties(PythonCapabilities PROPERTIES ENVIRONMENT "${PYTHON_TEST_ENVIRONMENT}")
 
-if(CMAKE_SYSTEM_NAME STREQUAL "Windows")
-  message(STATUS "Skipping Tests for PyLammps Module: not yet ported to Windows")
-else()
   add_test(NAME PythonPyLammps
            COMMAND ${PYTHON_TEST_RUNNER} ${CMAKE_CURRENT_SOURCE_DIR}/python-pylammps.py -v
            WORKING_DIRECTORY ${EXECUTABLE_OUTPUT_PATH})
   set_tests_properties(PythonPyLammps PROPERTIES ENVIRONMENT "${PYTHON_TEST_ENVIRONMENT}")
-endif()
 
   add_test(NAME PythonFormats
            COMMAND ${PYTHON_TEST_RUNNER} ${CMAKE_CURRENT_SOURCE_DIR}/python-formats.py -v
diff --git a/unittest/python/python-pylammps.py b/unittest/python/python-pylammps.py
index 6294972ab4..2b92f82248 100644
--- a/unittest/python/python-pylammps.py
+++ b/unittest/python/python-pylammps.py
@@ -1,6 +1,13 @@
-import sys,os,unittest
+import os,unittest
 from lammps import PyLammps
 
+try:
+    import numpy
+    NUMPY_INSTALLED = True
+except ImportError:
+    NUMPY_INSTALLED = False
+
+@unittest.skipIf(not NUMPY_INSTALLED, "numpy is not available")
 class PythonPyLammps(unittest.TestCase):
     def setUp(self):
         machine = None
@@ -49,8 +56,8 @@ class PythonPyLammps(unittest.TestCase):
         self.assertEqual(self.pylmp.lmp.create_atoms(2, id=None, type=types, x=x), 2)
         self.assertEqual(self.pylmp.system.natoms, 2)
         self.assertEqual(len(self.pylmp.atoms), 2)
-        self.assertEqual(self.pylmp.atoms[0].position, tuple(x[0:3]))
-        self.assertEqual(self.pylmp.atoms[1].position, tuple(x[3:6]))
+        numpy.testing.assert_array_equal(self.pylmp.atoms[0].position, tuple(x[0:3]))
+        numpy.testing.assert_array_equal(self.pylmp.atoms[1].position, tuple(x[3:6]))
         self.assertEqual(self.pylmp.last_run, None)