diff --git a/task-manager/src/routers/task.js b/task-manager/src/routers/task.js
index dac94a3..5ae68a0 100644
--- a/task-manager/src/routers/task.js
+++ b/task-manager/src/routers/task.js
@@ -17,9 +17,19 @@ router.post('/tasks', auth, async (req, res) => {
   }
 })
 
+// GET /tasks?completed=true
 router.get('/tasks', auth, async (req, res) => {
+  const match = {}
+
+  if (req.query.completed) {
+    match.completed = req.query.completed === 'true'
+  }
+
   try {
-    await req.user.populate('tasks').execPopulate()
+    await req.user.populate({
+      path: 'tasks',
+      match
+    }).execPopulate()
     res.send(req.user.tasks)
   } catch (e) {
     res.status(500).send()