diff --git a/crypto/cmp/cmp_kem.c b/crypto/cmp/cmp_kem.c
index de42366cc7f0af..4b0c01d884f6a6 100644
--- a/crypto/cmp/cmp_kem.c
+++ b/crypto/cmp/cmp_kem.c
@@ -53,7 +53,7 @@ static int x509_algor_from_nid_with_md(int nid, X509_ALGOR **palg,
 
     *palg = NULL;
     if (md == NULL)
-        return 1;
+        return 0;
     /* need to embed algorithm ID inside another */
     if (!ossl_x509_algor_new_from_md(&algtmp, md))
         goto err;