diff --git a/src/index.js b/src/index.js
index abce2aa..9bc6fe8 100644
--- a/src/index.js
+++ b/src/index.js
@@ -2,14 +2,16 @@ function toVal(mix) {
 	var k, y, str='';
 
 	if (typeof mix === 'string' || typeof mix === 'number') {
-		str += mix;
-	} else if (typeof mix === 'object') {
+		return mix;
+	}
+	
+	if (typeof mix === 'object') {
 		if (Array.isArray(mix)) {
-			for (k=0; k < mix.length; k++) {
-				if (mix[k]) {
-					if (y = toVal(mix[k])) {
+			for (y=0; y < mix.length; y++) {
+				if (mix[y]) {
+					if (k = toVal(mix[y])) {
 						str && (str += ' ');
-						str += y;
+						str += k;
 					}
 				}
 			}
diff --git a/test/index.js b/test/index.js
index b4e6b2f..3b67335 100644
--- a/test/index.js
+++ b/test/index.js
@@ -15,6 +15,11 @@ test('strings', t => {
 	t.end();
 });
 
+test('numbers', t => {
+	t.equal(fn(123, 456), '123 456');
+	t.end();
+});
+
 test('strings (variadic)', t => {
 	t.is(fn(''), '');
 	t.is(fn('foo'), 'foo');