diff --git a/navipy/scripts/blend_overlaytraj.py b/navipy/scripts/blend_overlaytraj.py
index 5b7728e1b6e3a2dbd992acbe145e26e279e873d7..b218c69802d512f8aff7daeeb283c582b15ea770 100644
--- a/navipy/scripts/blend_overlaytraj.py
+++ b/navipy/scripts/blend_overlaytraj.py
@@ -82,8 +82,8 @@ def run(trajfile):
     curveOB.select = True
     # bpy.ops.curve.primitive_nurbs_circle_add(
     #    radius=1, view_align=False, enter_editmode=False, location=(0, 0, 0))
-    #bpy.context.object.data.resolution_u = 3
-    #bpy.context.object.data.bevel_object = bpy.data.objects["NurbsCircle"]
+    # bpy.context.object.data.resolution_u = 3
+    # bpy.context.object.data.bevel_object = bpy.data.objects["NurbsCircle"]
 
     # add frame
     bpy.ops.object.empty_add(type='ARROWS',
@@ -126,7 +126,7 @@ def run(trajfile):
             axes=convention)
         frameobject.matrix_world = rotmat.transpose()
         if _renderaxis == '+x':
-            initrot = quatmatrix([0.5, 0.5, -0.5, -0.5])
+            initrot = quatmatrix([0.5, -0.5, 0.5, 0.5])
             # The camera is aligned in -z
             # A rotation along z wll thus roll the camera
             # Althougth the camera should yaw in such case