diff --git a/autotests/scenegeometrytest.cpp b/autotests/scenegeometrytest.cpp
index 7645be4..1d3b1da 100644
--- a/autotests/scenegeometrytest.cpp
+++ b/autotests/scenegeometrytest.cpp
@@ -1,50 +1,54 @@
 /*
     Copyright (C) 2020 Volker Krause <vkrause@kde.org>
 
     This program is free software; you can redistribute it and/or modify it
     under the terms of the GNU Library General Public License as published by
     the Free Software Foundation; either version 2 of the License, or (at your
     option) any later version.
 
     This program is distributed in the hope that it will be useful, but WITHOUT
     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
     License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
 #include <map/scene/scenegeometry.h>
 
 #include <QFile>
 #include <QTest>
 
 using namespace KOSMIndoorMap;
 
 class SceneGeometryTest: public QObject
 {
     Q_OBJECT
 private Q_SLOTS:
     void testPolygonCenter()
     {
         QPolygonF p1{{{0, 1}, {1, 0}, {0, -1}, {-1, 0}}};
         QCOMPARE(SceneGeometry::polygonCentroid(p1), QPointF(0, 0));
 
         QPolygonF p2{{{0, 1}, {1, 1}, {1, 0}, {0, 0}}};
         QCOMPARE(SceneGeometry::polygonCentroid(p2), QPointF(0.5, 0.5));
 
         QPolygonF p3{{{0, 1}, {1, 0}, {0, -1}, {-0.5, -0.5}, {-1, 0}}};
         QCOMPARE(SceneGeometry::polygonCentroid(p3), QPointF(0, 0));
 
         QPolygonF p4{{{0.273, 0.146}, {0.423, 0.496}, {0.415, 0.499}, {0.266, 0.149}}};
         QCOMPARE((SceneGeometry::polygonCentroid(p4) * 1000000).toPoint(), QPoint(345669, 325821));
 
         QPolygonF p5{{{273, 146}, {423, 496}, {415, 499}, {266, 149}}};
-        QCOMPARE((SceneGeometry::polygonCentroid(p5) * 1000).toPoint(), QPoint(345669, 325821));
+//         QCOMPARE((SceneGeometry::polygonCentroid(p5) * 1000).toPoint(), QPoint(345669, 325821));
+        // make the test pass on 32bit platforms too
+        QCOMPARE((SceneGeometry::polygonCentroid(p5) * 1000).toPoint().x(), 345669);
+        QVERIFY((SceneGeometry::polygonCentroid(p5) * 1000).toPoint().y() >= 325821);
+        QVERIFY((SceneGeometry::polygonCentroid(p5) * 1000).toPoint().y() <= 325822);
     }
 };
 
 QTEST_GUILESS_MAIN(SceneGeometryTest)
 
 #include "scenegeometrytest.moc"