diff --git a/src/components/OpenSeadragonViewer.js b/src/components/OpenSeadragonViewer.js
index 1e95e3083ef0f8ee1961bdc53cb4ef23e2289bbc..316fcaae48afa9cb08ee49762e812d857d23f008 100644
--- a/src/components/OpenSeadragonViewer.js
+++ b/src/components/OpenSeadragonViewer.js
@@ -32,6 +32,7 @@ class OpenSeadragonViewer extends Component {
       blendTime: 0.1,
       alwaysBlend: false,
       showNavigationControl: false,
+      preserveImageSizeOnResize: true,
     });
     tileSources.forEach(tileSource => this.addTileSource(tileSource));
   }