diff --git a/django_q/conf.py b/django_q/conf.py
index 6f2b718b..1c111607 100644
--- a/django_q/conf.py
+++ b/django_q/conf.py
@@ -156,7 +156,7 @@ class Conf(object):
     # OSX doesn't implement qsize because of missing sem_getvalue()
     try:
         QSIZE = Queue().qsize() == 0
-    except NotImplementedError:
+    except (NotImplementedError, OSError):
         QSIZE = False
 
     # Getting the signal names