1 files changed, 1 insertions, 1 deletions

diff --git a/src/openssl.c b/src/openssl.c
index 78ab3a0..39612e0 100644
--- a/src/openssl.c
+++ b/src/openssl.c
@@ -7720,7 +7720,7 @@ static int ssl_getHostName(lua_State *L) {
 
 static int ssl_setHostName(lua_State *L) {
         SSL *ssl = checksimple(L, 1, SSL_CLASS);
-        const char *host = luaL_checkstring(L, 2);
+        const char *host = luaL_optstring(L, 2, NULL);
 
         if (!SSL_set_tlsext_host_name(ssl, host))
                 return auxL_error(L, auxL_EOPENSSL, "ssl:setHostName");