diff --git a/themes/base/datepicker.css b/themes/base/datepicker.css
index 0cff00afe..164a34583 100644
--- a/themes/base/datepicker.css
+++ b/themes/base/datepicker.css
@@ -60,7 +60,7 @@
 }
 .ui-datepicker select.ui-datepicker-month,
 .ui-datepicker select.ui-datepicker-year {
-	width: 49%;
+	width: 45%;
 }
 .ui-datepicker table {
 	width: 100%;