diff --git a/python/tests/test_Orientation.py b/python/tests/test_Orientation.py
index 3d5a6c6f4..5a938da17 100644
--- a/python/tests/test_Orientation.py
+++ b/python/tests/test_Orientation.py
@@ -386,7 +386,7 @@ def test_to_frame_symmetries(self,lattice,mode,vector,N_sym):
         o = Orientation.from_random(lattice=lattice)
         frame = o.to_frame(**{keyword:vector,'with_symmetry':True})
         shape_full = frame.shape[0]
-        shape_reduced = np.unique(np.around(frame,12),axis=0).shape[0]
+        shape_reduced = np.unique(np.around(frame,11),axis=0).shape[0]
         assert shape_full//N_sym == shape_reduced