diff --git a/javascript/qrcodegen.js b/javascript/qrcodegen.js
index 14416cd..4f28398 100644
--- a/javascript/qrcodegen.js
+++ b/javascript/qrcodegen.js
@@ -208,11 +208,11 @@ var qrcodegen = new function() {
 		this.toSvgString = function(border) {
 			if (border < 0)
 				throw "Border must be non-negative";
-			var result = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
-			result += "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n";
-			result += "<svg xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\" viewBox=\"0 0 " + (size + border * 2) + " " + (size + border * 2) + "\" stroke=\"none\">\n";
-			result += "\t<rect width=\"100%\" height=\"100%\" fill=\"#FFFFFF\"/>\n";
-			result += "\t<path d=\"";
+			var result = '<?xml version="1.0" encoding="UTF-8"?>\n';
+			result += '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n';
+			result += '<svg xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="0 0 ' + (size + border * 2) + ' ' + (size + border * 2) + '" stroke="none">\n';
+			result += '\t<rect width="100%" height="100%" fill="#FFFFFF"/>\n';
+			result += '\t<path d="';
 			var head = true;
 			for (var y = -border; y < size + border; y++) {
 				for (var x = -border; x < size + border; x++) {
@@ -225,8 +225,8 @@ var qrcodegen = new function() {
 					}
 				}
 			}
-			result += "\" fill=\"#000000\"/>\n";
-			result += "</svg>\n";
+			result += '" fill="#000000"/>\n';
+			result += '</svg>\n';
 			return result;
 		};