diff --git a/histories/tor_runner.py b/histories/tor_runner.py
index ca7b06f..97bbc33 100644
--- a/histories/tor_runner.py
+++ b/histories/tor_runner.py
@@ -52,7 +52,7 @@ class TorInstance():
         self.session = None
         self.process = None
 
-    def run(self):
+    async def run(self):
         """ Runs the Tor Instance on the history.
         """
         t_start = time.now()
@@ -62,7 +62,7 @@ class TorInstance():
                 await(self.query(item[0]))
                 t_end = time.now()
                 diff = (history[0][1] - item[0]) - (t_end - t_start)
-                if diff > 0
+                if diff > 0:
                     sleep(diff)