1 files changed, 1 insertions, 0 deletions

diff --git a/src/openssl.c b/src/openssl.c
index f8c5047..6b74025 100644
--- a/src/openssl.c
+++ b/src/openssl.c
@@ -5516,6 +5516,7 @@ static int xr_setExtensionByNid(lua_State *L, X509_REQ *csr, int target_nid, voi
 
         // Delete the old extensions attribute, so that the one we just added takes priority
         if (has_attrs) {
+                attr = NULL;
                 for (pnid = X509_REQ_get_extension_nids(); *pnid != NID_undef; pnid++) {
                         idx = X509_REQ_get_attr_by_NID(csr, *pnid, -1);
                         if (idx == -1)