diff --git a/ffilib/ffilib.py b/ffilib/ffilib.py
index dc4d672a2..2ddada96b 100644
--- a/ffilib/ffilib.py
+++ b/ffilib/ffilib.py
@@ -1,4 +1,4 @@
-import sys
+import usys as sys
 try:
     import ffi
 except ImportError: