ext/curb_postfield.c in curb-0.6.6.0 vs ext/curb_postfield.c in curb-0.6.7

@@ -428,10 +428,10 @@
   Data_Get_Struct(self, ruby_curl_postfield, rbcpf);
 
   if ((rbcpf->local_file == Qnil) && (rbcpf->remote_file == Qnil)) {
     if (rbcpf->name != Qnil) {
 
-      char *tmpchrs = curl_escape(RSTRING_PTR(rbcpf->name), RSTRING_LEN(rbcpf->name));
+      char *tmpchrs = curl_escape(StringValuePtr(rbcpf->name), RSTRING_LEN(StringValue(rbcpf->name)));
       
       if (!tmpchrs) {
         rb_raise(eCurlErrInvalidPostField, "Failed to url-encode name `%s'", tmpchrs);
       } else {
         VALUE tmpcontent = Qnil;