diff --git a/libs/image/tests/kis_projection_test.cpp b/libs/image/tests/kis_projection_test.cpp
index 5e80ad2e8d..1fb288358a 100644
--- a/libs/image/tests/kis_projection_test.cpp
+++ b/libs/image/tests/kis_projection_test.cpp
@@ -1,61 +1,61 @@
 /*
  *  Copyright (c) 2007 Boudewijn Rempt <boud@valdyas.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU 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 General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #include "kis_projection_test.h"
 #include <QTest>
 
 
 #include <KoColor.h>
 #include <KoColorSpace.h>
 
 #include <kis_types.h>
 #include <kis_image.h>
 #include <kis_paint_layer.h>
 #include <kis_fill_painter.h>
 #include <kis_iterator_ng.h>
 
 void KisProjectionTest::testDirty()
 {
     KisImageSP image = new KisImage(0, 1000, 1000, 0, "layer tests");
 
     // Two layers so the single-layer-is-rootlayer optimization doesn't kick in
     KisLayerSP layer = new KisPaintLayer(image, "layer 1", OPACITY_OPAQUE_U8);
     KisLayerSP layer2 = new KisPaintLayer(image, "layer 2", OPACITY_OPAQUE_U8);
     image->addNode(layer);
     image->addNode(layer2);
     KisFillPainter gc(layer2->paintDevice());
     KoColor c(Qt::red, layer2->colorSpace());
     gc.fillRect(0, 0, 1000, 1000, c);
     gc.end();
     layer2->setDirty(gc.takeDirtyRegion());
 
     // wait a little for the projection to finish
-    QTest::qSleep(250);
+    QTest::qSleep(2500);
 
     // Check that the projection is totally redistribute
     KisSequentialConstIterator it(image->projection(), QRect(0, 0, 1000, 1000));
     do {
         QColor c;
         image->colorSpace()->toQColor(it.oldRawData(), &c, image->profile());
         QVERIFY(c == Qt::red);
     } while (it.nextPixel());
 }
 
 QTEST_MAIN(KisProjectionTest)