diff --git a/contrib/epee/include/net/http_client.h b/contrib/epee/include/net/http_client.h
index 0dee38a5..3ca863b6 100644
--- a/contrib/epee/include/net/http_client.h
+++ b/contrib/epee/include/net/http_client.h
@@ -907,7 +907,7 @@ using namespace std;
     struct idle_handler_base
     {
       virtual bool do_call(const std::string& piece_of_data, uint64_t total_bytes, uint64_t received_bytes) = 0;
-      virtual idle_handler_base() {}
+      virtual ~idle_handler_base() {}
     };
 
     template <typename callback_t>