diff --git a/src/app/valentina/core/vformulaproperty.cpp b/src/app/valentina/core/vformulaproperty.cpp
index db64e85b5..fbaf85cc0 100644
--- a/src/app/valentina/core/vformulaproperty.cpp
+++ b/src/app/valentina/core/vformulaproperty.cpp
@@ -198,10 +198,12 @@ void VFormulaProperty::SetFormula(const VFormula &formula)
     }
 }
 
+//---------------------------------------------------------------------------------------------------------------------
 void VFormulaProperty::ValueChildChanged(const QVariant &value, int typeForParent)
 {
     Q_UNUSED(typeForParent)
     VFormula newFormula = GetFormula();
     newFormula.SetFormula(value.toString(), FormulaType::FromUser);
+    newFormula.Eval();
     SetFormula(newFormula);
 }
diff --git a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollinepoint.cpp b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollinepoint.cpp
index b905f29ce..d7b2f2b92 100644
--- a/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollinepoint.cpp
+++ b/src/libs/vtools/tools/drawTools/toolpoint/toolsinglepoint/toollinepoint/vtoollinepoint.cpp
@@ -217,7 +217,7 @@ void VToolLinePoint::SetLineColor(const QString &value)
 VFormula VToolLinePoint::GetFormulaLength() const
 {
     VFormula fLength(formulaLength, this->getData());
-    fLength.setCheckZero(true);
+    fLength.setCheckZero(false);
     fLength.setToolId(m_id);
     fLength.setPostfix(UnitsToStr(qApp->patternUnit()));
     fLength.Eval();