diff --git a/src/viewer.js b/src/viewer.js
index a5ad1921..2102100b 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -2551,8 +2551,7 @@ $.extend( $.Viewer.prototype, $.EventSource.prototype, $.ControlDock.prototype,
         var currentPixelDensityRatio = $.getCurrentPixelDensityRatio();
         if (previusPixelDensityRatio !== currentPixelDensityRatio) {
             $.pixelDensityRatio = currentPixelDensityRatio;
-            this.world.resetItems();
-            this.forceRedraw();
+            this.forceResize();
         }
     },