diff --git a/include/common/defaults.h b/include/common/defaults.h
index 8d5d62a..0d18281 100644
--- a/include/common/defaults.h
+++ b/include/common/defaults.h
@@ -230,4 +230,9 @@
 #define TIME_STATS_SAMPLES 512
 #endif
 
+/* max ocsp cert id asn1 encoded length */
+#ifndef OCSP_MAX_CERTID_ASN1_LENGTH
+#define OCSP_MAX_CERTID_ASN1_LENGTH 128
+#endif
+
 #endif /* _COMMON_DEFAULTS_H */
diff --git a/include/proto/ssl_sock.h b/include/proto/ssl_sock.h
index 2d1dadc..0902fde 100644
--- a/include/proto/ssl_sock.h
+++ b/include/proto/ssl_sock.h
@@ -54,6 +54,9 @@
 int ssl_sock_get_cert_used(struct connection *conn);
 char *ssl_sock_get_common_name(struct connection *conn);
 unsigned int ssl_sock_get_verify_result(struct connection *conn);
+#ifdef SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB
+int ssl_sock_update_ocsp_response(struct chunk *ocsp_response, char **err);
+#endif
 
 #endif /* _PROTO_SSL_SOCK_H */