diff --git a/src/Umbraco.Web.UI.Client/src/less/main.less b/src/Umbraco.Web.UI.Client/src/less/main.less
index d9d60e90b0..e29d9173a2 100644
--- a/src/Umbraco.Web.UI.Client/src/less/main.less
+++ b/src/Umbraco.Web.UI.Client/src/less/main.less
@@ -574,3 +574,12 @@ input[type=checkbox]:checked + .input-label--small {
 	font-weight: bold;
 	line-height: 20px;
 }
+
+
+// Datepicker styles
+.bootstrap-datetimepicker-widget,
+.bootstrap-datetimepicker-widget td,
+.bootstrap-datetimepicker-widget th,
+.bootstrap-datetimepicker-widget td span {
+	border-radius: 0 !important;
+}