diff --git a/histories/models.py b/histories/models.py
index ef6f6f2..908884f 100644
--- a/histories/models.py
+++ b/histories/models.py
@@ -107,11 +107,13 @@ class History(models.Model):
             output += str(entry) + '\n'
         return output
 
-    def play_histories(self):
+    async def play_histories(self):
         """ Actually plays the history.
         """
         self.played = True
-        runner = TorInstance(self.return_history())
+        runner = await TorInstance.create(
+            self.return_history(),
+            self.user.browser_fingerprint.serialize_headers())
         runner.run()
         self.save()