diff --git a/guacamole/src/main/webapp/scripts/admin-ui.js b/guacamole/src/main/webapp/scripts/admin-ui.js
index cf6327652..e0a11db78 100644
--- a/guacamole/src/main/webapp/scripts/admin-ui.js
+++ b/guacamole/src/main/webapp/scripts/admin-ui.js
@@ -536,6 +536,27 @@ GuacAdmin.UserEditor = function(name, parameters) {
 
         };
 
+        // Update group permissions when changed
+        group_view.ongroupchange = function(group, selected) {
+
+            var id = group.id;
+
+            // Update permission deltas for ADDED permission
+            if (selected) {
+                added_perms.read_connection_group[id] = true;
+                if (removed_perms.read_connection_group[id])
+                    delete removed_perms.read_connection_group[id];
+            }
+
+            // Update permission deltas for REMOVED permission
+            else {
+                removed_perms.read_connection_group[id] = true;
+                if (added_perms.read_connection_group[id])
+                    delete added_perms.read_connection_group[id];
+            }
+
+        };
+
         // Set selectable and selected states based on current permissions
         for (var conn_id in group_view.connections) {