diff --git a/eventlet/coros.py b/eventlet/coros.py
index e9074dc..c766618 100644
--- a/eventlet/coros.py
+++ b/eventlet/coros.py
@@ -349,7 +349,6 @@ class Semaphore(object):
         if self.counter<=0:
             self._waiters[api.getcurrent()] = None
             try:
-                print "hub switch"
                 api.get_hub().switch()
             finally:
                 self._waiters.pop(api.getcurrent(), None)
@@ -409,7 +408,6 @@ class BoundedSemaphore(object):
                 api.get_hub().schedule_call_global(0, self._do_unlock)
             self._acquire_waiters[api.getcurrent()] = None
             try:
-                print "HUB switch"
                 api.get_hub().switch()
             finally:
                 self._acquire_waiters.pop(api.getcurrent(), None)