diff --git a/syncplay/server.py b/syncplay/server.py
index cb26dc8..73ccd38 100644
--- a/syncplay/server.py
+++ b/syncplay/server.py
@@ -256,8 +256,10 @@ class Room(object):
             self.__position = watcher.getPosition()
             self.__lastUpdate = time.time()
             return self.__position
-        else:
+        elif self.__position is not None:
             return self.__position + (age if self._playState == self.STATE_PLAYING else 0)
+        else:
+            return 0
 
     def setPaused(self, paused=STATE_PAUSED, setBy=None):
         self._playState = paused
@@ -326,8 +328,10 @@ class ControlledRoom(Room):
             self.__position = watcher.getPosition()
             self.__lastUpdate = time.time()
             return self.__position
-        else:
+        elif self.__position is not None:
             return self.__position + (age if self._playState == self.STATE_PLAYING else 0)
+        else:
+            return 0
 
     def addController(self, watcher):
         self._controllers[watcher.getName()] = watcher