diff --git a/components/qtmaterialtextfield.cpp b/components/qtmaterialtextfield.cpp
index 97480c9..795a0df 100644
--- a/components/qtmaterialtextfield.cpp
+++ b/components/qtmaterialtextfield.cpp
@@ -299,6 +299,10 @@ void QtMaterialTextField::paintEvent(QPaintEvent *event)
         QPen pen;
         pen.setWidth(1);
         pen.setColor(underlineColor());
+	if( !isEnabled() )
+	{
+	    pen.setStyle( Qt::DotLine );
+	}
         painter.setPen(pen);
         painter.setOpacity(1);
         painter.drawLine(2.5, y, wd, y);