diff --git a/src/widget/datetime/datetime.combo.js b/src/widget/datetime/datetime.combo.js
index 600a28242..81224c021 100644
--- a/src/widget/datetime/datetime.combo.js
+++ b/src/widget/datetime/datetime.combo.js
@@ -31,6 +31,7 @@ BI.DateTimeCombo = BI.inherit(BI.Single, {
         };
         this.trigger = BI.createWidget({
             type: "bi.date_time_trigger",
+            height: opts.height,
             min: opts.minDate,
             max: opts.maxDate,
             value: opts.value
@@ -82,8 +83,8 @@ BI.DateTimeCombo = BI.inherit(BI.Single, {
         var triggerBtn = BI.createWidget({
             type: "bi.icon_button",
             cls: "bi-trigger-icon-button date-font",
-            width: 24,
-            height: 24
+            width: opts.height,
+            height: opts.height,
         });
         triggerBtn.on(BI.IconButton.EVENT_CHANGE, function () {
             if (self.combo.isViewVisible()) {