diff --git a/plumbum/paramiko_machine.py b/plumbum/paramiko_machine.py

index acc3666..e04c795 100644

--- a/plumbum/paramiko_machine.py

+++ b/plumbum/paramiko_machine.py

@@ -71,7 +71,7 @@ class ParamikoPopen(object):

                     line = infile.readline()

                 except (ValueError, IOError):

                     line = None

-                print "!!", repr(line)

+                print("!! %s", (repr(line),))

                 if not line:

                     infile.close()

                     infile = None