diff --git a/tags/icon.php b/tags/icon.php
index d3b71b6..302aec2 100644
--- a/tags/icon.php
+++ b/tags/icon.php
@@ -19,7 +19,7 @@
        if HTML code is passed into Html::tag is must be wrappend in an array:
     */
     $html = Html::tag('span', [$icon_svg], [
-      'class' => $cls
+      'class' => ['simpleicon', $cls]
     ]);
 
     return $html;