1 files changed, 1 insertions, 1 deletions

diff --git a/src/openssl.c b/src/openssl.c
index 562927d..d64777f 100644
--- a/src/openssl.c
+++ b/src/openssl.c
@@ -4837,7 +4837,7 @@ static int ssl_getAlpnSelected(lua_State *L) {
         if (0 == len) {
                 lua_pushnil(L);
         } else {
-                lua_pushlstring(L, data, len);
+                lua_pushlstring(L, (const char *)data, len);
         }
         return 1;
 } /*ssl_getAlpnSelected */