diff --git a/test/tests.json b/test/tests.json
index b8b85be..fc9046b 100644
--- a/test/tests.json
+++ b/test/tests.json
@@ -152,7 +152,8 @@
     "transports": [
       "buffered",
       "framed",
-      "framed:fastframed"
+      "framed:fastframed",
+      "zlib"
     ],
     "sockets": [
       "ip",