diff --git a/lib/hx509/revoke.c b/lib/hx509/revoke.c
index 857a05c43..4ba2452ef 100644
--- a/lib/hx509/revoke.c
+++ b/lib/hx509/revoke.c
@@ -208,15 +208,18 @@ load_ocsp(hx509_context context, struct revoke_ocsp *ocsp)
 	return EINVAL;
     }
 
-    /*
-     * XXX find BasicReponse and act on it
-     */
-    
     if (resp.responseBytes == NULL) {
 	free_OCSPResponse(&resp);
 	return EINVAL;
     }
 
+    ret = heim_oid_cmp(&resp.responseBytes->responseType, 
+		       oid_id_pkix_ocsp_basic());
+    if (ret != 0) {
+	free_OCSPResponse(&resp);
+	return EINVAL;
+    }
+
     ret = decode_OCSPBasicOCSPResponse(resp.responseBytes->response.data,
 				       resp.responseBytes->response.length,
 				       &basic,