diff --git a/lib/gssapi/krb5/external.c b/lib/gssapi/krb5/external.c
index 454c14c6d..04a363cfe 100644
--- a/lib/gssapi/krb5/external.c
+++ b/lib/gssapi/krb5/external.c
@@ -411,7 +411,8 @@ static gssapi_mech_interface_desc krb5_mech = {
     _gsskrb5_inquire_sec_context_by_oid,
     _gsskrb5_inquire_cred_by_oid,
     _gsskrb5_set_sec_context_option,
-    _gsskrb5_set_cred_option
+    _gsskrb5_set_cred_option,
+    _gsskrb5_pseudo_random
 };
 
 gssapi_mech_interface