diff --git a/macosx/Controller.m b/macosx/Controller.m
index 5b2e4aa7b..10c56873e 100644
--- a/macosx/Controller.m
+++ b/macosx/Controller.m
@@ -3713,7 +3713,8 @@ static void sleepCallback(void * controller, io_service_t y, natural_t messageTy
                 if ([torrent isActive])
                 {
                     //stop all transfers (since some are active) before going to sleep and remember to resume when we wake up
-                    [fTorrents makeObjectsPerformSelector: @selector(sleep)];
+                    for (Torrent * torrent in fTorrents)
+                        [torrent sleep];
                     sleep(15);
                     break;
                 }
@@ -3738,7 +3739,8 @@ static void sleepCallback(void * controller, io_service_t y, natural_t messageTy
 
         case kIOMessageSystemHasPoweredOn:
             //resume sleeping transfers after we wake up
-            [fTorrents makeObjectsPerformSelector: @selector(wakeUp)];
+            for (Torrent * torrent in fTorrents)
+                [torrent wakeUp];
             #warning check speed limit timer?
             //[self autoSpeedLimitChange: nil];
             break;