diff --git a/src/js/oCrossword.js b/src/js/oCrossword.js
index c567ab8..07a93b7 100644
--- a/src/js/oCrossword.js
+++ b/src/js/oCrossword.js
@@ -26,9 +26,7 @@ function buildGrid(
 	answers
 }) {
 	const gridEl = rootEl.querySelector('table');
-	gridEl.innerHTML = "";
 	const cluesEl = rootEl.querySelector('ul.o-crossword-clues')
-	cluesEl.innerHTML = "";
 	const {cols, rows} = size;
 	for (let i=0; i<rows; i++) {
 		const tr = document.createElement('tr');
@@ -138,8 +136,6 @@ function OCrossword(rootEl) {
 				.then(json => buildGrid(rootEl, json))
 				.then(()   => this.assemble() );
 			}
-		} else {
-			this.assemble();
 		}
 	}
 }