diff --git a/tests/suites/test_suite_x509write.function b/tests/suites/test_suite_x509write.function
index 107d923..f3a161c 100644
--- a/tests/suites/test_suite_x509write.function
+++ b/tests/suites/test_suite_x509write.function
@@ -37,7 +37,7 @@
         goto cleanup;
     }
 
-    if (mbedtls_pk_verify_ext(csr.sig_pk, csr.sig_opts, &csr.pk,
+    if (mbedtls_pk_verify_ext(csr.sig_pk, NULL, &csr.pk,
                               csr.sig_md, hash, mbedtls_md_get_size_from_type(csr.sig_md),
                               csr.sig.p, csr.sig.len) != 0) {
         ret = MBEDTLS_ERR_X509_CERT_VERIFY_FAILED;