diff --git a/core/module/theme/view/header/header.php b/core/module/theme/view/header/header.php
index 011e9fd..0ba6a1a 100644
--- a/core/module/theme/view/header/header.php
+++ b/core/module/theme/view/header/header.php
@@ -36,7 +36,7 @@ echo template::formOpen('themeHeaderForm');
     <div class="col2 offset4">
         <?php echo template::submit('themeHeaderSubmitPreview',[
 			'value' => $text['core_theme_view']['header'][37],
-			'ico' =>'',
+			'ico' =>'eye',
 			'class' => 'buttonPreview'
 		]); ?>
     </div>