diff --git a/src/Mod/Fem/femsolver/calculix/write_femelement_material.py b/src/Mod/Fem/femsolver/calculix/write_femelement_material.py
index 80b71fc506..3ae71ef66a 100644
--- a/src/Mod/Fem/femsolver/calculix/write_femelement_material.py
+++ b/src/Mod/Fem/femsolver/calculix/write_femelement_material.py
@@ -88,6 +88,7 @@ def write_femelement_material(f, ccxwriter):
         f.write("*MATERIAL, NAME=" + mat_name + "\n")
         if mat_obj.Category == "Solid":
             f.write("*ELASTIC\n")
+            # FIXME https://forum.freecadweb.org/viewtopic.php?f=18&t=60066&p=516434#p516433
             if YM_in_MPa >= 1000:
                 f.write("{0:.0f}, {1:.3f}\n".format(YM_in_MPa, PR))
             else: