diff --git a/js/src/jit-test/jit_test.py b/js/src/jit-test/jit_test.py
index c45e67e4af5..d9a1a2a783f 100755
--- a/js/src/jit-test/jit_test.py
+++ b/js/src/jit-test/jit_test.py
@@ -3,6 +3,8 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+from __future__ import print_function, unicode_literals
+
 import math, os, posixpath, shlex, shutil, subprocess, sys, traceback
 
 def add_libdir_to_path():
@@ -156,7 +158,7 @@ def main(argv):
         test_list = [ test for test in test_list if test not in set(exclude_list) ]
 
     if not test_list:
-        print >> sys.stderr, "No tests found matching command line arguments."
+        print("No tests found matching command line arguments.", file=sys.stderr)
         sys.exit(0)
 
     test_list = [jittests.Test.from_file(_, options) for _ in test_list]
@@ -216,9 +218,9 @@ def main(argv):
 
     if options.debug:
         if len(job_list) > 1:
-            print 'Multiple tests match command line arguments, debugger can only run one'
+            print('Multiple tests match command line arguments, debugger can only run one')
             for tc in job_list:
-                print '    %s' % tc.path
+                print('    %s' % tc.path)
             sys.exit(1)
 
         tc = job_list[0]
@@ -238,7 +240,7 @@ def main(argv):
             sys.exit(2)
     except OSError:
         if not os.path.exists(prefix[0]):
-            print >> sys.stderr, "JS shell argument: file does not exist: '%s'" % prefix[0]
+            print("JS shell argument: file does not exist: '%s'" % prefix[0], file=sys.stderr)
             sys.exit(1)
         else:
             raise