diff --git a/themes/base/jquery.ui.selectmenu.css b/themes/base/jquery.ui.selectmenu.css
index 804f96cfb..0d54350a9 100644
--- a/themes/base/jquery.ui.selectmenu.css
+++ b/themes/base/jquery.ui.selectmenu.css
@@ -55,7 +55,7 @@
 	padding: 0.4em 2.1em 0.4em 1em;
 	display: block;
 	line-height: 1.4;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    white-space: nowrap;
+	overflow: hidden;
+	text-overflow: ellipsis;
+	white-space: nowrap;
 }