diff --git a/bin/pssh b/bin/pssh
index 860bad2..5fe726d 100755
--- a/bin/pssh
+++ b/bin/pssh
@@ -65,7 +65,10 @@ def do_pssh(hosts, cmdline, opts):
     if opts.errdir and not os.path.exists(opts.errdir):
         os.makedirs(opts.errdir)
     if opts.send_input:
-        stdin = sys.stdin.read()
+        if hasattr(sys.stdin, 'buffer'):
+            stdin = sys.stdin.buffer.read()
+        else:
+            stdin = sys.stdin.read()
     else:
         stdin = None
     manager = Manager(opts)