diff --git a/man/conf.py b/man/conf.py
index 2b24223b12dfb..67d371e6750dd 100644
--- a/man/conf.py
+++ b/man/conf.py
@@ -9,7 +9,7 @@
 
 
 def _get_description(fname, base):
-    with file(fname) as f:
+    with open(fname) as f:
         one = None
         while True:
             line = f.readline().rstrip('\n')