diff --git a/pkgs/development/python-modules/nats-py/default.nix b/pkgs/development/python-modules/nats-py/default.nix
index 6e4ac3afa1d9..ac89b87e5fa9 100644
--- a/pkgs/development/python-modules/nats-py/default.nix
+++ b/pkgs/development/python-modules/nats-py/default.nix
@@ -58,6 +58,7 @@ buildPythonPackage (finalAttrs: {
     "test_pull_subscribe_limits"
     "test_stream_management"
     "test_subscribe_no_echo"
+    "test_rtt"
     # Tests fail on hydra, often Time-out
     "test_subscribe_iterate_next_msg"
     "test_ordered_consumer_larger_streams"