diff --git a/tests/org.eclipse.swt.tests/JUnit Tests/org/eclipse/swt/tests/junit/Test_org_eclipse_swt_widgets_Shell.java b/tests/org.eclipse.swt.tests/JUnit Tests/org/eclipse/swt/tests/junit/Test_org_eclipse_swt_widgets_Shell.java
index 8a3c83b1a1..d16f1e47ae 100644
--- a/tests/org.eclipse.swt.tests/JUnit Tests/org/eclipse/swt/tests/junit/Test_org_eclipse_swt_widgets_Shell.java	
+++ b/tests/org.eclipse.swt.tests/JUnit Tests/org/eclipse/swt/tests/junit/Test_org_eclipse_swt_widgets_Shell.java	
@@ -807,20 +807,31 @@ public void test_setSizeLorg_eclipse_swt_graphics_Point() {
 		Point newSize = new Point(112, 27);
 		for (int i = 0; i < 10; i++) {
 			testShell.setSize(newSize);
-			assertEquals(newSize, testShell.getSize());
+			assertShellProperlySized(testShell, newSize);
 			newSize.x += 100;
 			newSize.y += 100;
 		}
 		newSize = new Point(1292, 1036);
 		for (int i = 0; i < 10; i++) {
 			testShell.setSize(newSize);
-			assertEquals(newSize, testShell.getSize());
+			assertShellProperlySized(testShell, newSize);
 			newSize.x -= 100;
 			newSize.y -= 100;
 		}
 	}
 }
 
+private void assertShellProperlySized(Shell shell, Point expectedSize) {
+	int tolerance = shell.getZoom() != 100 ? 1 : 0;
+	Point actualSize = shell.getSize();
+	assertTrue(
+			Math.abs(expectedSize.x - actualSize.x) <= tolerance
+					&& Math.abs(expectedSize.y - actualSize.y) <= tolerance,
+			"Shell is not sized correctly" //
+					+ " (expected size: " + expectedSize + " ± " + tolerance //
+					+ ", actual size: " + actualSize + ")");
+}
+
 Shell testShell;
 
 private void createShell() {