diff --git a/scrapy/utils/memory.py b/scrapy/utils/memory.py
index bed6821f9..3340a0a6e 100644
--- a/scrapy/utils/memory.py
+++ b/scrapy/utils/memory.py
@@ -1,3 +1,5 @@
+from __future__ import with_statement
+
 import os
 import sys
 import struct
@@ -64,7 +66,4 @@ def _vmvalue_solaris(vmkey, pid):
 
     vm_in_kB = parts[vmkey_index[vmkey]]
 
-    def kB_to_Bytes(kB):
-        return kB * 1024
-
     return vm_in_kB * 1024