diff --git a/src/meshlabplugins/edit_sample/edit_sample.cpp b/src/meshlabplugins/edit_sample/edit_sample.cpp
index b93d75bb57..5ef023c962 100644
--- a/src/meshlabplugins/edit_sample/edit_sample.cpp
+++ b/src/meshlabplugins/edit_sample/edit_sample.cpp
@@ -196,6 +196,8 @@ void SampleEditPlugin::decorate(MeshModel &m, GLArea * gla, QPainter *p)
 void SampleEditPlugin::drawFace(CMeshO::FacePointer fp, MeshModel &m, GLArea * /*gla*/, QPainter *p)
 {
 	QString buf = QString("f#%1 - v#(%2 %3 %4)").arg(QString::number(tri::Index(m.cm, fp))).arg(QString::number(tri::Index(m.cm, fp->V(0)))).arg(QString::number(tri::Index(m.cm, fp->V(1)))).arg(QString::number(tri::Index(m.cm, fp->V(2))));
+	if (m.hasDataMask(MeshModel::MM_FACEQUALITY))
+		buf += QString(" - Q(%1)").arg(QString::number(fp->Q()));
 	if (m.hasDataMask(MeshModel::MM_FACECOLOR))
 		buf += QString(" - color(%1 %2 %3 %4)").arg(QString::number(fp->C()[0])).arg(QString::number(fp->C()[1])).arg(QString::number(fp->C()[2])).arg(QString::number(fp->C()[3]));
 	Point3m c = Barycenter(*fp);