diff --git a/templates/Includes/MemberTableField.ss b/templates/Includes/MemberTableField.ss
index d36041dd..fa8175d3 100755
--- a/templates/Includes/MemberTableField.ss
+++ b/templates/Includes/MemberTableField.ss
@@ -30,6 +30,8 @@
 				<tr style="display: none;">
 					<% if Markable %><td width="18">&nbsp;</td><% end_if %>
 					<td colspan="$ItemCount">
+						<input type="hidden" id="{$id}_PopupHeight" value="$PopupHeight" disabled="disabled"/>
+						<input type="hidden" id="{$id}_PopupWidth" value="$PopupWidth" disabled="disabled"/>
 						<a class="popuplink addlink" href="$AddLink" alt="add"><img src="cms/images/add.gif" alt="add" /></a><a class="popuplink addlink" href="$AddLink" alt="add"><% _t('ADDNEW','Add new',50,'Followed by a member type') %> $Title</a>
 					</td>
 					<% if Can(show) %><td width="18">&nbsp;</td><% end_if %>