diff --git a/modules/luci-base/htdocs/luci-static/resources/form.js b/modules/luci-base/htdocs/luci-static/resources/form.js
index a1bfbdc2b2..8bb0da4a40 100644
--- a/modules/luci-base/htdocs/luci-static/resources/form.js
+++ b/modules/luci-base/htdocs/luci-static/resources/form.js
@@ -1126,7 +1126,7 @@ var CBITableSection = CBITypedSection.extend({
 						'value': _('Save')
 					})
 				])
-			]);
+			], 'cbi-modal');
 		}, this)).catch(L.error);
 	}
 });
diff --git a/modules/luci-base/htdocs/luci-static/resources/ui.js b/modules/luci-base/htdocs/luci-static/resources/ui.js
index c51d651e9e..28d1fa90ae 100644
--- a/modules/luci-base/htdocs/luci-static/resources/ui.js
+++ b/modules/luci-base/htdocs/luci-static/resources/ui.js
@@ -1414,11 +1414,14 @@ return L.Class.extend({
 	},
 
 	/* Modal dialog */
-	showModal: function(title, children) {
+	showModal: function(title, children /* , ... */) {
 		var dlg = modalDiv.firstElementChild;
 
 		dlg.setAttribute('class', 'modal');
 
+		for (var i = 2; i < arguments.length; i++)
+			dlg.classList.add(arguments[i]);
+
 		L.dom.content(dlg, L.dom.create('h4', {}, title));
 		L.dom.append(dlg, children);