diff --git a/scapy/sendrecv.py b/scapy/sendrecv.py
index 9cf0a88c5d8639afd5aaf8998d7c8a22813494c8..eba6925fa4dc2f03473f4bb93119e870b210b0df 100644
--- a/scapy/sendrecv.py
+++ b/scapy/sendrecv.py
@@ -12,6 +12,7 @@ from packet import Gen
 from utils import warning,get_temp_file
 import plist
 from error import log_runtime,log_interactive
+from base_classes import SetGen
 
 #################
 ## Debug class ##