diff --git a/src/Mod/Fem/FemGmshTools.py b/src/Mod/Fem/FemGmshTools.py
index 26fd8d728f..1923003c51 100644
--- a/src/Mod/Fem/FemGmshTools.py
+++ b/src/Mod/Fem/FemGmshTools.py
@@ -48,13 +48,13 @@ class FemGmshTools():
         # part to mesh
         self.part_obj = self.mesh_obj.Part
 
-        # clmax, ElementSizeMax: float, 0.0 = 1e+22
-        self.clmax = Units.Quantity(self.mesh_obj.ElementSizeMax).Value
+        # clmax, CharacteristicLengthMax: float, 0.0 = 1e+22
+        self.clmax = Units.Quantity(self.mesh_obj.CharacteristicLengthMax).Value
         if self.clmax == 0.0:
             self.clmax = 1e+22
 
-        # clmin, ElementSizeMin: float
-        self.clmin = Units.Quantity(self.mesh_obj.ElementSizeMin).Value
+        # clmin, CharacteristicLengthMin: float
+        self.clmin = Units.Quantity(self.mesh_obj.CharacteristicLengthMin).Value
 
         # order, ElementOrder: ['Auto', '1st', '2nd']
         self.order = self.mesh_obj.ElementOrder
@@ -71,8 +71,8 @@ class FemGmshTools():
     def create_mesh(self):
         print("\nWe gone start GMSH FEM mesh run!")
         print('  Part to mesh: Name --> ' + self.part_obj.Name + ',  Label --> ' + self.part_obj.Label + ', ShapeType --> ' + self.part_obj.Shape.ShapeType)
-        print('  ElementSizeMax: ' + str(self.clmax))
-        print('  ElementSizeMin: ' + str(self.clmin))
+        print('  CharacteristicLengthMax: ' + str(self.clmax))
+        print('  CharacteristicLengthMin: ' + str(self.clmin))
         print('  ElementOrder: ' + self.order)
         self.get_dimension()
         self.get_tmp_file_paths()
diff --git a/src/Mod/Fem/_FemMeshGmsh.py b/src/Mod/Fem/_FemMeshGmsh.py
index ea29ad8a30..7e1279e04b 100644
--- a/src/Mod/Fem/_FemMeshGmsh.py
+++ b/src/Mod/Fem/_FemMeshGmsh.py
@@ -44,11 +44,11 @@ class _FemMeshGmsh():
         obj.addProperty("App::PropertyLink", "Part", "FEM Mesh", "Part object to mesh")
         obj.Part = None
 
-        obj.addProperty("App::PropertyLength", "ElementSizeMax", "FEM Mesh Params", "Max mesh element size (0.0 = infinity)")
-        obj.ElementSizeMax = 0.0  # will be 1e+22
+        obj.addProperty("App::PropertyLength", "CharacteristicLengthMax", "FEM Mesh Params", "Max mesh element size (0.0 = infinity)")
+        obj.CharacteristicLengthMax = 0.0  # will be 1e+22
 
-        obj.addProperty("App::PropertyLength", "ElementSizeMin", "FEM Mesh Params", "Min mesh element size")
-        obj.ElementSizeMin = 0.0
+        obj.addProperty("App::PropertyLength", "CharacteristicLengthMin", "FEM Mesh Params", "Min mesh element size")
+        obj.CharacteristicLengthMin = 0.0
 
         obj.addProperty("App::PropertyEnumeration", "ElementDimension", "FEM Mesh Params", "Dimension of mesh elements (Auto = according ShapeType of part to mesh)")
         obj.ElementDimension = _FemMeshGmsh.known_element_dimensions
diff --git a/src/Mod/Fem/_TaskPanelFemMeshGmsh.py b/src/Mod/Fem/_TaskPanelFemMeshGmsh.py
index 0a9d0a42a2..0b4b4913e8 100644
--- a/src/Mod/Fem/_TaskPanelFemMeshGmsh.py
+++ b/src/Mod/Fem/_TaskPanelFemMeshGmsh.py
@@ -78,14 +78,14 @@ class _TaskPanelFemMeshGmsh:
             self.run_gmsh()
 
     def get_mesh_params(self):
-        self.clmax = self.mesh_obj.ElementSizeMax
-        self.clmin = self.mesh_obj.ElementSizeMin
+        self.clmax = self.mesh_obj.CharacteristicLengthMax
+        self.clmin = self.mesh_obj.CharacteristicLengthMin
         self.order = self.mesh_obj.ElementOrder
         self.dimension = self.mesh_obj.ElementDimension
 
     def set_mesh_params(self):
-        self.mesh_obj.ElementSizeMax = self.clmax
-        self.mesh_obj.ElementSizeMin = self.clmin
+        self.mesh_obj.CharacteristicLengthMax = self.clmax
+        self.mesh_obj.CharacteristicLengthMin = self.clmin
         self.mesh_obj.ElementOrder = self.order
         self.mesh_obj.ElementDimension = self.dimension