diff --git a/mhkit/tests/dolfyn/test_motion.py b/mhkit/tests/dolfyn/test_motion.py
index 626293a4..64caaccc 100644
--- a/mhkit/tests/dolfyn/test_motion.py
+++ b/mhkit/tests/dolfyn/test_motion.py
@@ -60,7 +60,7 @@ def test_motion_adv(self):
         assert_allclose(tdm10, tdmj, atol=1e-7)
         assert_allclose(tdm0, tdm, atol=1e-7)
         assert_allclose(tdm10, cdm10, atol=1e-7)
-        assert_allclose(tdmE, cdm10, atol=1e-7)
+        assert_allclose(tdmE, cdm10, atol=1e-6)
         assert_allclose(tdmj, load("vector_data_imu01-json_mc.nc"), atol=1e-7)
 
     def test_sep_probes(self):