diff --git a/src/ocsp.c b/src/ocsp.c
index e1672fcf..ac67a534 100644
--- a/src/ocsp.c
+++ b/src/ocsp.c
@@ -185,7 +185,7 @@ static int openssl_ocsp_request_read(lua_State *L)
 
 #if defined(__clang__)
 #pragma clang diagnostic push
-#pragma clang diagnostic ignored"-Wincompatible-function-pointer-types"
+#pragma clang diagnostic ignored "-Wincompatible-pointer-types"
 #endif
   OCSP_REQUEST *req = pem ? PEM_read_bio_OCSP_REQUEST(bio, NULL, NULL)
                           : d2i_OCSP_REQUEST_bio(bio, NULL);
@@ -361,7 +361,7 @@ static int openssl_ocsp_response_read(lua_State *L)
 
 #if defined(__clang__)
 #pragma clang diagnostic push
-#pragma clang diagnostic ignored"-Wincompatible-function-pointer-types"
+#pragma clang diagnostic ignored "-Wincompatible-pointer-types"
 #endif
   OCSP_RESPONSE *res = pem ? PEM_read_bio_OCSP_RESPONSE(bio, NULL, NULL)
                            : d2i_OCSP_RESPONSE_bio(bio, NULL);
diff --git a/src/ssl.c b/src/ssl.c
index 0d1761d8..ed34dbcf 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -1083,7 +1083,7 @@ static int openssl_alpn_select_cb(SSL *ssl, const unsigned char **out, unsigned
       while (pos < inlen)
       {
         int len = in[pos++];
-        lua_pushlstring(L, in + pos, len);
+        lua_pushlstring(L, (const char*)in + pos, len);
         lua_rawseti(L, -2, index++);
         pos += len;
       }