diff --git a/src/apps/relay/acme.c b/src/apps/relay/acme.c
index c6e66c10..40404a38 100644
--- a/src/apps/relay/acme.c
+++ b/src/apps/relay/acme.c
@@ -63,7 +63,7 @@ int try_acme_redirect(char *req, size_t len, const char *url,
 	snprintf(http_response, sizeof(http_response) - 1,
 		"HTTP/1.1 301 Moved Permanently\r\n"
 		"Content-Type: text/html\r\n"
-		"Content-Length: %ld\r\n"
+		"Content-Length: %zu\r\n"
 		"Connection: close\r\n"
 		"Location: %s%s\r\n"
 		"\r\n%s", strlen(HTML), url, req + GET_ACME_PREFIX_LEN, HTML);
diff --git a/src/apps/relay/dbdrivers/dbd_redis.c b/src/apps/relay/dbdrivers/dbd_redis.c
index d3126219..714ebc8b 100644
--- a/src/apps/relay/dbdrivers/dbd_redis.c
+++ b/src/apps/relay/dbdrivers/dbd_redis.c
@@ -1033,6 +1033,7 @@ static int redis_list_realm_options(uint8_t *realm) {
 }
   
 static void redis_auth_ping(void * rch) {
+	UNUSED_ARG(rch);
 	redisContext *rc = get_redis_connection();
 	if(rc) {
 		turnFreeRedisReply(redisCommand(rc, "keys turn/origin/*"));