diff --git a/src/saml2/attributemaps/saml_uri.py b/src/saml2/attributemaps/saml_uri.py
index ef1921e..877ffc6 100644
--- a/src/saml2/attributemaps/saml_uri.py
+++ b/src/saml2/attributemaps/saml_uri.py
@@ -7,7 +7,7 @@ NETSCAPE_LDAP = "urn:oid:2.16.840.1.113730.3.1."
 UCL_DIR_PILOT = 'urn:oid:0.9.2342.19200300.100.1.'
 PKCS_9 = "urn:oid:1.2.840.113549.1.9.1."
 UMICH = "urn:oid:1.3.6.1.4.1.250.1.57."
-SCHAC = "urn:oid:1.3.6.1.4.1.25178.2."
+SCHAC = "urn:oid:1.3.6.1.4.1.25178.1.2."
 
 #urn:oid:1.3.6.1.4.1.1466.115.121.1.26