diff --git a/selftests/functional/test_basic.py b/selftests/functional/test_basic.py
index 476899cd54cf25f252dcb5caf0a4f048719e158e..64bb20a5e8f13f82e807dc0cc1a9299513f1febf 100644
--- a/selftests/functional/test_basic.py
+++ b/selftests/functional/test_basic.py
@@ -17,7 +17,7 @@ import pkg_resources
 
 try:
     from io import BytesIO
-except:
+except ImportError:
     from BytesIO import BytesIO
 
 try: