diff --git a/lib/damask/orientation.py b/lib/damask/orientation.py
index d3cd4f94a..63fb124a6 100644
--- a/lib/damask/orientation.py
+++ b/lib/damask/orientation.py
@@ -855,7 +855,7 @@ class Orientation:
       M = closest.quaternion.asM() * n if i == 0 else M + closest.quaternion.asM() * n              # noqa add (multiples) of this orientation to average noqa
     eig, vec = np.linalg.eig(M/N)
 
-    return Orientation(quaternion = Quaternion(quatArray = np.real(vec.T[eig.argmax()])),
+    return Orientation(quaternion = Quaternion(quat = np.real(vec.T[eig.argmax()])),
                        symmetry = reference.symmetry.lattice)
 
 
diff --git a/processing/post/addGrainID.py b/processing/post/addGrainID.py
index 45034034b..c3b98f4e6 100755
--- a/processing/post/addGrainID.py
+++ b/processing/post/addGrainID.py
@@ -200,9 +200,9 @@ for name in filenames:
       if gID != -1 and gID not in alreadyChecked:                                                   # indexed point belonging to a grain not yet tested?
         alreadyChecked[gID] = True                                                                  # remember not to check again
         disorientation = o.disorientation(orientations[gID],SST = False)[0]                         # compare against other orientation
-        if disorientation.quaternion.w >  cos_disorientation:                                       # within threshold ...
+        if disorientation.quaternion.q >  cos_disorientation:                                       # within threshold ...
           candidates.append(gID)                                                                    # remember as potential candidate
-          if disorientation.quaternion.w >= bestDisorientation.w:                                   # ... and better than current best? 
+          if disorientation.quaternion.q >= bestDisorientation.q:                                   # ... and better than current best? 
             matched = True
             matchedID = gID                                                                         # remember that grain
             bestDisorientation = disorientation.quaternion
diff --git a/processing/pre/geom_fromTable.py b/processing/pre/geom_fromTable.py
index 3cdd1b2e6..e1157d325 100755
--- a/processing/pre/geom_fromTable.py
+++ b/processing/pre/geom_fromTable.py
@@ -258,7 +258,7 @@ for name in filenames:
 
             if len(grains) > 0:                                                                     # check immediate neighborhood first
               cos_disorientations = np.array([o.disorientation(orientations[grainID],
-                                                               SST = False)[0].quaternion.w \
+                                                               SST = False)[0].quaternion.q \
                                               for grainID in grains])                               # store disorientation per grainID
               closest_grain = np.argmax(cos_disorientations)                                        # grain among grains with closest orientation to myself
               match = 'local'
@@ -269,7 +269,7 @@ for name in filenames:
 
               if len(grains) > 0:
                 cos_disorientations = np.array([o.disorientation(orientations[grainID],
-                                                                 SST = False)[0].quaternion.w \
+                                                                 SST = False)[0].quaternion.q \
                                                 for grainID in grains])                             # store disorientation per grainID
                 closest_grain = np.argmax(cos_disorientations)                                      # grain among grains with closest orientation to myself
                 match = 'global'