diff --git a/tests/test_COM_utils.py b/tests/test_COM_utils.py
index 232a4529..e056daa1 100644
--- a/tests/test_COM_utils.py
+++ b/tests/test_COM_utils.py
@@ -222,10 +222,10 @@ def test_COM_dist_wo_unwrapping_wo_subtract_wo_periodic(self):
         COM2 = np.array([0 + 0, 0 + 5, 0 + 0]) / 2 / 10         # [0.   0.25 0.  ]
         D12 = np.linalg.norm(COM1 - COM2)
 
-        np.testing.assert_array_equal(D12,
-                                      geom2COMdist(self.geom, [[0, 1]],
-                                                   subtract_max_radii=False, low_mem=True, periodic=False,
-                                                   per_residue_unwrap=False))
+        np.testing.assert_almost_equal(D12,
+                                       geom2COMdist(self.geom, [[0, 1]],
+                                                    subtract_max_radii=False, low_mem=True, periodic=False,
+                                                    per_residue_unwrap=False).squeeze())
 
     def test_COM_dist_wo_unwrapping_wo_subtract_w_periodic(self):
         # PBCs
@@ -278,4 +278,4 @@ def test_COM_dist_w_unwrapping_w_subtract_low_and_hi_mem(self):
                                                     per_residue_unwrap=True))
 
 if __name__ == '__main__':
-    unittest.main()
\ No newline at end of file
+    unittest.main()