diff --git a/source/Ox.UI/js/Form/ButtonGroup.js b/source/Ox.UI/js/Form/ButtonGroup.js
index 977638fb..be26757b 100644
--- a/source/Ox.UI/js/Form/ButtonGroup.js
+++ b/source/Ox.UI/js/Form/ButtonGroup.js
@@ -47,6 +47,7 @@ Ox.ButtonGroup = function(options, self) {
             })
             .addClass(
                 'OxButtonGroup'
+                + (self.options.style != 'default' ? ' Ox' + Ox.toTitleCase(self.options.style) : '')
                 + (self.options.overlap != 'none' ? ' OxOverlap' + Ox.toTitleCase(self.options.overlap) : '')
             );