diff --git a/addons/website/static/src/js/website.editor.js b/addons/website/static/src/js/website.editor.js
index a339ea6d63a7decf64d1607e4a777dd1c7791c16..addc414b25b457373cd0c37344dfdce02b1b8e3a 100644
--- a/addons/website/static/src/js/website.editor.js
+++ b/addons/website/static/src/js/website.editor.js
@@ -1785,7 +1785,8 @@
                         .attr('data-size', size)
                         .addClass(size)
                         .addClass(no_sizes);
-                if ((size && _.contains(classes, size)) || (classes[2] === "" && !selected)) {
+
+                if ((size && _.contains(classes, size)) || (size === "" && !selected)) {
                     this.$preview.append($p.clone());
                     this.$('#fa-size').val(size);
                     $p.addClass('font-icons-selected');