diff --git a/js/reveal.js b/js/reveal.js
index a1a91d0..3edd301 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -4055,7 +4055,7 @@
 		// focus the document.body to ensure we can use keyboard shortcuts
 		if( isHidden === false && document.activeElement !== document.body ) {
 			// Not all elements support .blur() - SVGs among them.
-			if (typeof document.activeElement.blur === 'function') {
+			if( typeof document.activeElement.blur === 'function' ) {
 				document.activeElement.blur();
 			}
 			document.body.focus();