diff --git a/src/Mod/Fem/femexamples/rc_wall_2d.py b/src/Mod/Fem/femexamples/rc_wall_2d.py
index aee9eb067d..ca6bcf6695 100644
--- a/src/Mod/Fem/femexamples/rc_wall_2d.py
+++ b/src/Mod/Fem/femexamples/rc_wall_2d.py
@@ -159,6 +159,7 @@ def setup(doc=None, solvertype="ccxtools"):
     # constraint displacement
     con_disp = ObjectsFem.makeConstraintDisplacement(doc, "ConstraintDisplacmentPrescribed")
     con_disp.References = [(geom_obj, "Face1")]
+    con_disp.zFree = False
     con_disp.zFix = True
     analysis.addObject(con_disp)