diff --git a/src/Mod/Fem/FemInputWriterCcx.py b/src/Mod/Fem/FemInputWriterCcx.py
index 889475eac..824caa0a4 100644
--- a/src/Mod/Fem/FemInputWriterCcx.py
+++ b/src/Mod/Fem/FemInputWriterCcx.py
@@ -211,7 +211,7 @@ class FemInputWriterCcx(FemInputWriter.FemInputWriter):
 
     def write_constraints_fixed(self, f):
         f.write('\n***********************************************************\n')
-        f.write('** Constaints\n')
+        f.write('** Constraints\n')
         f.write('** written by {} function\n'.format(sys._getframe().f_code.co_name))
         for femobj in self.fixed_objects:  # femobj --> dict, FreeCAD document object is femobj['Object']
             fix_obj_name = femobj['Object'].Name
diff --git a/src/Mod/Fem/test_files/ccx/cube_frequency.inp b/src/Mod/Fem/test_files/ccx/cube_frequency.inp
index be8a7bb92..7bdbc8640 100644
--- a/src/Mod/Fem/test_files/ccx/cube_frequency.inp
+++ b/src/Mod/Fem/test_files/ccx/cube_frequency.inp
@@ -492,7 +492,7 @@ Eall
 *STATIC
 
 ***********************************************************
-** Constaints
+** Constraints
 ** written by write_constraints_fixed function
 *BOUNDARY
 FemConstraintFixed,1
diff --git a/src/Mod/Fem/test_files/ccx/cube_static.inp b/src/Mod/Fem/test_files/ccx/cube_static.inp
index e07034213..17370ab8e 100644
--- a/src/Mod/Fem/test_files/ccx/cube_static.inp
+++ b/src/Mod/Fem/test_files/ccx/cube_static.inp
@@ -492,7 +492,7 @@ Eall
 *STATIC
 
 ***********************************************************
-** Constaints
+** Constraints
 ** written by write_constraints_fixed function
 *BOUNDARY
 FemConstraintFixed,1