diff --git a/src/client/libdistren_request.c b/src/client/libdistren_request.c
--- a/src/client/libdistren_request.c
+++ b/src/client/libdistren_request.c
@@ -101,6 +101,7 @@ size_t libdistren_remoteio_read_handle(s
 
       distren_request_free(req);
       buf += last_len;
+      to_return += last_len;
       len -= last_len;
     }