diff --git a/src/saml2/idpdisc.py b/src/saml2/idpdisc.py
index a07c2ce..93c4049 100644
--- a/src/saml2/idpdisc.py
+++ b/src/saml2/idpdisc.py
@@ -5,7 +5,6 @@
 #
 
 import saml2
-from saml2 import SamlBase
 from saml2 import md
 
 NAMESPACE = "urn:oasis:names:tc:SAML:profiles:SSO:idp-discovery-protocol"