diff --git a/src/Mod/Fem/femsolver/calculix/writer.py b/src/Mod/Fem/femsolver/calculix/writer.py
index cdce06a55a..cd84cecc6e 100644
--- a/src/Mod/Fem/femsolver/calculix/writer.py
+++ b/src/Mod/Fem/femsolver/calculix/writer.py
@@ -1953,7 +1953,7 @@ class FemInputWriterCcx(writerbase.FemInputWriter):
 # M .. Material
 # B .. Beam
 # R .. BeamRotation
-# D ..Direction
+# D .. Direction
 # F .. Fluid
 # S .. Shell,
 # TODO write comment into input file to elset ids and elset attributes