diff --git a/src/libs/vtools/dialogs/tools/dialogdetail.cpp b/src/libs/vtools/dialogs/tools/dialogdetail.cpp
index 2d75a9443..c4c4c9829 100644
--- a/src/libs/vtools/dialogs/tools/dialogdetail.cpp
+++ b/src/libs/vtools/dialogs/tools/dialogdetail.cpp
@@ -52,6 +52,10 @@ DialogDetail::DialogDetail(const VContainer *data, const quint32 &toolId, QWidge
     ui.labelUnitX->setText(VDomDocument::UnitsToStr(qApp->patternUnit(), true));
     ui.labelUnitY->setText(VDomDocument::UnitsToStr(qApp->patternUnit(), true));
 
+    if(qApp->patternUnit() == Unit::Inch)
+    {
+        ui.doubleSpinBoxSeams->setDecimals(5);
+    }
     // Default value for seam allowence is 1 cm. But pattern have different units, so just set 1 in dialog not enough.
     ui.doubleSpinBoxSeams->setValue(UnitConvertor(1, Unit::Cm, qApp->patternUnit()));