diff --git a/Pages/AdminEditUser.cshtml b/Pages/AdminEditUser.cshtml
index d422740..7b69c34 100644
--- a/Pages/AdminEditUser.cshtml
+++ b/Pages/AdminEditUser.cshtml
@@ -46,6 +46,7 @@
 				@if (user.Groups.Any(p => p == group)) {
 					if (group.Name == ConfigCache.AdminGroup && user == HttpContext.GetRemoteUser(db)) {
 						<input class="form-check-input" type="checkbox" id="check-group-@group.Id" name="group" value="@group.Id" checked disabled>
+						<input type="hidden" id="check-group-@group.Id" name="group" value="@group.Id"> // needed because "disabled" checkboxes aren't sent to the backend, even when checked
 					}
 					else {
 						<input class="form-check-input" type="checkbox" id="check-group-@group.Id" name="group" value="@group.Id" checked>