diff --git a/src/Mod/Fem/femexamples/boxanalysis_static.py b/src/Mod/Fem/femexamples/boxanalysis_static.py
index da99bcd5fa..a8246d8b09 100644
--- a/src/Mod/Fem/femexamples/boxanalysis_static.py
+++ b/src/Mod/Fem/femexamples/boxanalysis_static.py
@@ -72,7 +72,7 @@ def setup_base(doc=None, solvertype="ccxtools"):
     if solvertype == "elmer":
         # set ThermalExpansionCoefficient
         # FIXME elmer elasticity needs the dictionary key "ThermalExpansionCoefficient"
-        mat["ThermalExpansionCoefficient"] = "0 um/m/K"
+        mat["ThermalExpansionCoefficient"] = "0.012 mm/m/K"
     material_object.Material = mat
 
     # mesh
diff --git a/src/Mod/Fem/femtest/data/elmer/case_mm.sif b/src/Mod/Fem/femtest/data/elmer/case_mm.sif
index 95228e82f3..d886180ce8 100644
--- a/src/Mod/Fem/femtest/data/elmer/case_mm.sif
+++ b/src/Mod/Fem/femtest/data/elmer/case_mm.sif
@@ -54,7 +54,7 @@ End
 
 Material 1
   Density = Real 7.9e-06
-  Heat expansion Coefficient = Real 0.0
+  Heat expansion Coefficient = Real 1.2e-05
   Poisson ratio = Real 0.3
   Youngs Modulus = Real 200000000.0
 End