diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
index 790b57bbd..b9398462a 100644
--- a/wolfcrypt/src/asn.c
+++ b/wolfcrypt/src/asn.c
@@ -35260,6 +35260,7 @@ int InitOcspRequest(OcspRequest* req, DecodedCert* cert, byte useNonce,
                                                      DYNAMIC_TYPE_OCSP_REQUEST);
             if (req->url == NULL) {
                 XFREE(req->serial, req->heap, DYNAMIC_TYPE_OCSP);
+                req->serial = NULL;
                 return MEMORY_E;
             }