diff --git a/src/ocsp.c b/src/ocsp.c
index 1b7395895..efb86f37c 100644
--- a/src/ocsp.c
+++ b/src/ocsp.c
@@ -607,7 +607,9 @@ WOLFSSL_OCSP_CERTID* wolfSSL_OCSP_cert_to_id(
         /* AddCA() frees the buffer. */
         XMEMCPY(derCert->buffer, issuer->derCert->buffer,
                 issuer->derCert->length);
-        AddCA(cm, &derCert, WOLFSSL_USER_CA, 1);
+        ret = AddCA(cm, &derCert, WOLFSSL_USER_CA, 1);
+        if (ret != WOLFSSL_SUCCESS)
+            return NULL;
     }
 
     certId = (WOLFSSL_OCSP_CERTID*)XMALLOC(sizeof(WOLFSSL_OCSP_CERTID), NULL,