diff --git a/addons/info/src/components/PropTable.js b/addons/info/src/components/PropTable.js
index 843969243bf8..aeb51e46e08f 100644
--- a/addons/info/src/components/PropTable.js
+++ b/addons/info/src/components/PropTable.js
@@ -36,6 +36,8 @@ const renderDocgenPropType = propType => {
     case 'instanceOf':
       return propType.value;
     case 'union':
+      return propType.raw;
+	case 'signature':
       return propType.raw;
     default:
       return name;