diff --git a/kcm/protocol.c b/kcm/protocol.c
index ce547506f..bb73a01ee 100644
--- a/kcm/protocol.c
+++ b/kcm/protocol.c
@@ -1629,7 +1629,7 @@ kcm_op_do_ntlm(krb5_context context,
     }
 #endif
 
-    ret = heim_ntlm_encode_type3(&type3, &ndata);
+    ret = heim_ntlm_encode_type3(&type3, &ndata, NULL);
     if (ret)
 	goto error;
 
diff --git a/lib/gssapi/ntlm/init_sec_context.c b/lib/gssapi/ntlm/init_sec_context.c
index b2f2f715a..66e5d477c 100644
--- a/lib/gssapi/ntlm/init_sec_context.c
+++ b/lib/gssapi/ntlm/init_sec_context.c
@@ -473,7 +473,7 @@ _gss_ntlm_init_sec_context
 
 
 
-	ret = heim_ntlm_encode_type3(&type3, &data);
+	ret = heim_ntlm_encode_type3(&type3, &data, NULL);
 	free(type3.sessionkey.data);
 	if (type3.lm.data)
 	    free(type3.lm.data);
diff --git a/lib/gssapi/test_ntlm.c b/lib/gssapi/test_ntlm.c
index 85ef7d114..56f4814e6 100644
--- a/lib/gssapi/test_ntlm.c
+++ b/lib/gssapi/test_ntlm.c
@@ -131,7 +131,7 @@ test_libntlm_v1(int flags)
 	free(key.data);
     }
 
-    ret = heim_ntlm_encode_type3(&type3, &data);
+    ret = heim_ntlm_encode_type3(&type3, &data, NULL);
     if (ret)
 	errx(1, "heim_ntlm_encode_type3");
 
@@ -260,7 +260,7 @@ test_libntlm_v2(int flags)
 	}
     }
 
-    ret = heim_ntlm_encode_type3(&type3, &data);
+    ret = heim_ntlm_encode_type3(&type3, &data, NULL);
     if (ret)
 	errx(1, "heim_ntlm_encode_type3");