diff --git a/Modules/_ssl.c b/Modules/_ssl.c
index da30cbb758e..089aa3b24a0 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -1822,7 +1822,7 @@ _ssl__test_decode_cert_impl(PyObject *module, PyObject *path)
         goto fail0;
     }
 
-    x = PEM_read_bio_X509_AUX(cert,NULL, NULL, NULL);
+    x = PEM_read_bio_X509(cert, NULL, NULL, NULL);
     if (x == NULL) {
         PyErr_SetString(PySSLErrorObject,
                         "Error decoding PEM-encoded file");