diff --git a/public/js/controllers/filtersCtrl.js b/public/js/controllers/filtersCtrl.js
index 8f665eaba4..71056016c1 100644
--- a/public/js/controllers/filtersCtrl.js
+++ b/public/js/controllers/filtersCtrl.js
@@ -41,9 +41,9 @@ habitrpg.controller("FiltersCtrl", ['$scope', '$rootScope', 'User',
         ui.item.sortable.cancel();
       },
       stop: function(e, ui) {
-        User.user.ops.sortTag({
-          query: {from: ui.item.sortable.index, to:ui.item.sortable.dropindex}
-        });
+        var from = ui.item.sortable.index, to = ui.item.sortable.dropindex;
+        if (!from || !to) return;
+        User.user.ops.sortTag({query: {from: from, to: to}});
       },
       axis: 'x',
       //distance: 5
diff --git a/public/js/controllers/tasksCtrl.js b/public/js/controllers/tasksCtrl.js
index 24a5daee66..640f3da797 100644
--- a/public/js/controllers/tasksCtrl.js
+++ b/public/js/controllers/tasksCtrl.js
@@ -90,10 +90,9 @@ habitrpg.controller("TasksCtrl", ['$scope', '$rootScope', '$location', 'User','N
         ui.item.sortable.cancel();
       },
       stop: function(e, ui) {
-        User.user.ops.sortTask({
-          params: {id: ui.item.scope().task.id},
-          query: {from: ui.item.sortable.index, to:ui.item.sortable.dropindex}
-        });
+        var from = ui.item.sortable.index, to = ui.item.sortable.dropindex;
+        if (!from || !to) return;
+        User.user.ops.sortTask({ params: {id: ui.item.scope().task.id}, query: {from: from, to: to} });
       },
       axis: 'y',
       //distance: 5