diff --git a/package.json b/package.json
index 90538abc3..6c69aaf59 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
 	"bundlesize": [
 		{
 			"path": "resources/dist/index.js",
-			"maxSize": "13.82kB"
+			"maxSize": "13.6kB"
 		}
 	]
 }
diff --git a/src/ui/templates/referencePreview/referencePreview.less b/src/ui/templates/referencePreview/referencePreview.less
index eda7aa487..9d5625a3a 100644
--- a/src/ui/templates/referencePreview/referencePreview.less
+++ b/src/ui/templates/referencePreview/referencePreview.less
@@ -38,6 +38,10 @@
 			padding-right: @popupPadding;
 		}
 
+		.mw-parser-output {
+			overflow-wrap: break-word;
+		}
+
 		// Remove the default fade-out effect set by popup.less
 		&:after {
 			display: none;
diff --git a/webpack.config.js b/webpack.config.js
index 39a519284..15fc84946 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -112,8 +112,8 @@ module.exports = ( env, argv ) => ( {
 		// Minified uncompressed size limits for chunks / assets and entrypoints. Keep these numbers
 		// up-to-date and rounded to the nearest 10th of a kibibyte so that code sizing costs are
 		// well understood. Related to bundlesize minified, gzipped compressed file size tests.
-		maxAssetSize: 42.6 * 1024,
-		maxEntrypointSize: 42.6 * 1024,
+		maxAssetSize: 41.4 * 1024,
+		maxEntrypointSize: 41.4 * 1024,
 
 		// The default filter excludes map files but we rename ours.
 		assetFilter: ( filename ) => !filename.endsWith( srcMapExt )