diff --git a/lib/create-icon-set.js b/lib/create-icon-set.js
index 3dc7969..818307c 100644
--- a/lib/create-icon-set.js
+++ b/lib/create-icon-set.js
@@ -33,7 +33,7 @@ export default function createIconSet(glyphMap, fontFamily, fontFile) {
 
   class Icon extends Component {
     static propTypes = {
-      name: IconNamePropType.isRequired,
+      name: IconNamePropType,
       size: PropTypes.number,
       color: PropTypes.string,
       children: PropTypes.node,
@@ -59,7 +59,7 @@ export default function createIconSet(glyphMap, fontFamily, fontFile) {
     render() {
       const { name, size, color, style, ...props } = this.props;
 
-      let glyph = glyphMap[name] || '?';
+      let glyph = name ? glyphMap[name] || '?' : '';
       if (typeof glyph === 'number') {
         glyph = String.fromCharCode(glyph);
       }