diff --git a/xCAT-UI/js/custom/zvm.js b/xCAT-UI/js/custom/zvm.js
index e9ccce82d..d957d30ae 100644
--- a/xCAT-UI/js/custom/zvm.js
+++ b/xCAT-UI/js/custom/zvm.js
@@ -878,7 +878,6 @@ zvmPlugin.prototype.addNode = function() {
 					
 	// Open form as a dialog
 	addNodeForm.dialog({
-		position: 'top',
 		modal: true,
 		width: 400,
 		buttons: {
diff --git a/xCAT-UI/js/custom/zvmUtils.js b/xCAT-UI/js/custom/zvmUtils.js
index a0fd76a86..eb4a41341 100644
--- a/xCAT-UI/js/custom/zvmUtils.js
+++ b/xCAT-UI/js/custom/zvmUtils.js
@@ -1026,7 +1026,6 @@ function openAddProcDialog(node) {
 	
 	// Open dialog to add processor
 	addProcForm.dialog({
-		position: 'top',
 		modal: true,
 		width: 400,
 		buttons: {
@@ -1131,7 +1130,6 @@ function openAddDiskDialog(node, hcp) {
 
 	// Open dialog to add disk
 	addDiskForm.dialog({
-		position: 'top',
 		modal: true,
 		width: 400,
 		buttons: {
@@ -1356,7 +1354,6 @@ function openAddNicDialog(node, hcp) {
 	
 	// Open dialog to add NIC
 	addNicForm.dialog({
-		position: 'top',
 		modal: true,
 		width: 400,
 		buttons: {
diff --git a/xCAT-UI/js/nodes/nodes.js b/xCAT-UI/js/nodes/nodes.js
index 36a6f158e..6b2a9ab34 100644
--- a/xCAT-UI/js/nodes/nodes.js
+++ b/xCAT-UI/js/nodes/nodes.js
@@ -170,7 +170,6 @@ function loadGroups(data) {
 					
 		// Open dialog to add node
 		addNodeForm.dialog({
-			position: 'top',
 			modal: true,
 			width: 400,
 			buttons: {
diff --git a/xCAT-UI/js/ui.js b/xCAT-UI/js/ui.js
index 829605f4c..8d2eea71d 100644
--- a/xCAT-UI/js/ui.js
+++ b/xCAT-UI/js/ui.js
@@ -532,7 +532,6 @@ function openDialog(msg) {
 		
 	// Open dialog
 	div.dialog({
-		position: 'top',
 		modal: true,
 		width: 400,
 		buttons: {