diff --git a/loopy/symbolic.py b/loopy/symbolic.py
index be74e12bc5246470c2b6d6e4b1000eeb34fbb01f..64aaf2e8dcfa2a57633b47557eafc0c8607da4b5 100644
--- a/loopy/symbolic.py
+++ b/loopy/symbolic.py
@@ -25,6 +25,8 @@ THE SOFTWARE.
 """
 
 
+from six.moves import intern
+
 from pytools import memoize, memoize_method, Record
 import pytools.lex
 
@@ -1046,6 +1048,4 @@ class AccessRangeMapper(WalkMapper):
 
 # }}}
 
-
-
 # vim: foldmethod=marker