diff --git a/src/Base/UnitsSchemaImperial1.cpp b/src/Base/UnitsSchemaImperial1.cpp
index 16d7bb580..cb226bcb3 100644
--- a/src/Base/UnitsSchemaImperial1.cpp
+++ b/src/Base/UnitsSchemaImperial1.cpp
@@ -55,7 +55,7 @@ using namespace Base;
 
 QString UnitsSchemaImperial1::schemaTranslate(Base::Quantity quant,double &factor,QString &unitString)
 {
-    double UnitValue = quant.getValue();
+    double UnitValue = std::abs(quant.getValue());
 	Unit unit = quant.getUnit();
     // for imperial user/programmer mind; UnitValue is in internal system, that means
     // mm/kg/s. And all combined units have to be calculated from there! 
@@ -115,5 +115,5 @@ QString UnitsSchemaImperial1::schemaTranslate(Base::Quantity quant,double &facto
         unitString = quant.getUnit().getString();
         factor = 1.0;
     }
-	return QString::fromLatin1("%1 %2").arg(UnitValue / factor).arg(unitString);
+	return QString::fromLatin1("%1 %2").arg(quant.getValue() / factor).arg(unitString);
 }
diff --git a/src/Base/UnitsSchemaInternal.cpp b/src/Base/UnitsSchemaInternal.cpp
index 2408ff288..b9c212c49 100644
--- a/src/Base/UnitsSchemaInternal.cpp
+++ b/src/Base/UnitsSchemaInternal.cpp
@@ -36,7 +36,7 @@ using namespace Base;
 
 QString UnitsSchemaInternal::schemaTranslate(Base::Quantity quant,double &factor,QString &unitString)
 {
-    double UnitValue = quant.getValue();
+    double UnitValue = std::abs(quant.getValue());
 	Unit unit = quant.getUnit();
 
     // now do special treatment on all cases seams nececarry:
@@ -97,6 +97,6 @@ QString UnitsSchemaInternal::schemaTranslate(Base::Quantity quant,double &factor
         unitString = quant.getUnit().getString();
         factor = 1.0;
     }
-    return QString::fromUtf8("%1 %2").arg(UnitValue / factor).arg(unitString);
+    return QString::fromUtf8("%1 %2").arg(quant.getValue() / factor).arg(unitString);
 }
 
diff --git a/src/Base/UnitsSchemaMKS.cpp b/src/Base/UnitsSchemaMKS.cpp
index 532d32304..c9041e7c3 100644
--- a/src/Base/UnitsSchemaMKS.cpp
+++ b/src/Base/UnitsSchemaMKS.cpp
@@ -36,7 +36,7 @@ using namespace Base;
 
 QString UnitsSchemaMKS::schemaTranslate(Base::Quantity quant,double &factor,QString &unitString)
 {
-    double UnitValue = quant.getValue();
+    double UnitValue = std::abs(quant.getValue());
 	Unit unit = quant.getUnit();
 
     // now do special treatment on all cases seams nececarry:
@@ -92,5 +92,5 @@ QString UnitsSchemaMKS::schemaTranslate(Base::Quantity quant,double &factor,QStr
         unitString = quant.getUnit().getString();
         factor = 1.0;
     }
-	return QString::fromUtf8("%1 %2").arg(UnitValue / factor).arg(unitString);
+	return QString::fromUtf8("%1 %2").arg(quant.getValue() / factor).arg(unitString);
 }