diff --git a/src/Mod/Fem/feminout/importZ88Mesh.py b/src/Mod/Fem/feminout/importZ88Mesh.py
index 6d15330a0b..fd35461f8e 100644
--- a/src/Mod/Fem/feminout/importZ88Mesh.py
+++ b/src/Mod/Fem/feminout/importZ88Mesh.py
@@ -126,6 +126,7 @@ def import_z88_mesh(
     if femmesh:
         mesh_object = FreeCAD.ActiveDocument.addObject('Fem::FemMeshObject', mesh_name)
         mesh_object.FemMesh = femmesh
+    return mesh_object
 
 
 def read_z88_mesh(
diff --git a/src/Mod/Fem/feminout/importZ88O2Results.py b/src/Mod/Fem/feminout/importZ88O2Results.py
index 67eacc241d..0458c21269 100644
--- a/src/Mod/Fem/feminout/importZ88O2Results.py
+++ b/src/Mod/Fem/feminout/importZ88O2Results.py
@@ -124,6 +124,7 @@ def import_z88_disp(
         FreeCAD.Console.PrintError(
             'Problem on Z88 result file import. No nodes found in Z88 result file.\n'
         )
+    return res_obj
 
 
 def read_z88_disp(