diff --git a/src/Mod/Fem/MechanicalMaterial.ui b/src/Mod/Fem/MechanicalMaterial.ui
index dbfdcbd0e6..b708345d76 100644
--- a/src/Mod/Fem/MechanicalMaterial.ui
+++ b/src/Mod/Fem/MechanicalMaterial.ui
@@ -61,7 +61,7 @@
         <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
        </property>
        <property name="unit" stdset="0">
-        <string>Pa</string>
+        <string notr="true">Pa</string>
        </property>
        <property name="decimals" stdset="0">
         <number>3</number>