diff --git a/config.py b/config.py
index ed61e0d2c3671e51a1ff64dac68d976fd6f0a57f..13b5c30c761183ae64ae3f491cd27e13f5c4331b 100644
--- a/config.py
+++ b/config.py
@@ -43,8 +43,7 @@ def walk(agent_hostname, community, base_oid):
             CommunityData(community),
             UdpTransportTarget((agent_hostname, 161)),
             ContextData(),
-            ObjectType(ObjectIdentity(base_oid)
-                            .addAsn1MibSource('http://mibs.snmplabs.com/asn1/@mib@')),
+            ObjectType(ObjectIdentity(base_oid)),
             lexicographicMode=False,
             lookupNames=True,
             lookupValues=True):