diff --git a/libcurl_http_fetcher.h b/libcurl_http_fetcher.h
index c5f784b..177664b 100644
--- a/libcurl_http_fetcher.h
+++ b/libcurl_http_fetcher.h
@@ -91,6 +91,10 @@
   }
 
  private:
+  // Callback for when proxy resolution has completed. This begins the
+  // transfer.
+  void ProxiesResolved();
+   
   // Asks libcurl for the http response code and stores it in the object.
   void GetHttpResponseCode();