diff --git a/src/Mod/Fem/MechanicalMaterial.py b/src/Mod/Fem/MechanicalMaterial.py
index 8ed57fc80..f1f02607b 100644
--- a/src/Mod/Fem/MechanicalMaterial.py
+++ b/src/Mod/Fem/MechanicalMaterial.py
@@ -148,7 +148,7 @@ class _MechanicalMaterialTaskPanel:
 
         matmap = self.obj.Material
 
-        matmap['Mechanical_youngsmodulus'] = self.form.spinBox_young_modulus.text()
+        matmap['Mechanical_youngsmodulus'] = self.form.input_fd_young_modulus.text()
         matmap['FEM_poissonratio'] = str(self.form.spinBox_poisson_ratio.value())
         print self.form.comboBox_MaterialsInDir.currentText()
 
@@ -161,7 +161,7 @@ class _MechanicalMaterialTaskPanel:
 
         if 'Mechanical_youngsmodulus' in matmap:
             #print matmap['Mechanical_youngsmodulus']
-            self.form.spinBox_young_modulus.setText(matmap['Mechanical_youngsmodulus'])
+            self.form.input_fd_young_modulus.setText(matmap['Mechanical_youngsmodulus'])
         if 'FEM_poissonratio' in matmap:
             #print float(matmap['FEM_poissonratio'])
             self.form.spinBox_poisson_ratio.setValue(float(matmap['FEM_poissonratio']))
@@ -177,7 +177,7 @@ class _MechanicalMaterialTaskPanel:
 
     def update(self):
         'fills the widgets'
-        #self.form.spinBox_young_modulus.setValue(0.0)
+        #self.form.input_fd_young_modulus.setValue(0.0)
         #self.form.spinBox_poisson_ratio.setValue(0.0)
         self.transferFrom()
         self.fillMaterialCombo()
diff --git a/src/Mod/Fem/MechanicalMaterial.ui b/src/Mod/Fem/MechanicalMaterial.ui
index 48cebddb5..9ecedf593 100644
--- a/src/Mod/Fem/MechanicalMaterial.ui
+++ b/src/Mod/Fem/MechanicalMaterial.ui
@@ -44,7 +44,7 @@
       </widget>
      </item>
      <item row="0" column="1">
-      <widget class="Gui::InputField" name="spinBox_young_modulus">
+      <widget class="Gui::InputField" name="input_fd_young_modulus">
        <property name="sizePolicy">
         <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
          <horstretch>0</horstretch>