diff --git a/lib/url.c b/lib/url.c
index 5bb34be71cafb0efb1b2d9b3a204f5a725c4d0eb..80469587e9ef6cc9b51963ae3ec9ec44acfcbbc6 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -719,6 +719,12 @@ CURLcode Curl_setopt(CURL *curl, CURLoption option, ...)
      */
     data->err = va_arg(param, FILE *);
     break;
+  case CURLOPT_HEADERFUNCTION:
+    /*
+     * Set header write callback
+     */
+    data->fwrite_header = va_arg(param, curl_write_callback);
+    break;
   case CURLOPT_WRITEFUNCTION:
     /*
      * Set data write callback