diff --git a/bin/pssh b/bin/pssh
index 5b6c2a5..dc53a36 100755
--- a/bin/pssh
+++ b/bin/pssh
@@ -90,7 +90,7 @@ def do_pssh(hosts, cmdline, opts):
     except FatalError:
         sys.exit(1)
 
-    if min(statuses) < 0:
+    if None in statuses:
         # At least one process was killed.
         sys.exit(3)
     # The any builtin was introduced in Python 2.5 (so we can't use it yet):