diff --git a/tools/list_dart_files.py b/tools/list_dart_files.py
index d62550c8989..cc131de1eeb 100755
--- a/tools/list_dart_files.py
+++ b/tools/list_dart_files.py
@@ -48,7 +48,7 @@ def main(argv):
                 else:
                     fullname = os.path.relpath(os.path.join(root, filename))
                 fullname = fullname.replace(os.sep, '/')
-                print fullname
+                print (fullname)
 
 
 if __name__ == '__main__':
diff --git a/tools/list_files.py b/tools/list_files.py
index 2573bc15609..0dfc8b6a66e 100755
--- a/tools/list_files.py
+++ b/tools/list_files.py
@@ -35,7 +35,7 @@ def main(argv):
                     fullname = os.path.relpath(os.path.join(root, filename))
                 fullname = fullname.replace(os.sep, '/')
                 if re.search(pattern, fullname):
-                    print fullname
+                    print (fullname)
 
 
 if __name__ == '__main__':