diff --git a/contrib/pyln-testing/pyln/testing/utils.py b/contrib/pyln-testing/pyln/testing/utils.py
index 9aa077ebfced..1f6e51dd2e68 100644
--- a/contrib/pyln-testing/pyln/testing/utils.py
+++ b/contrib/pyln-testing/pyln/testing/utils.py
@@ -830,7 +830,7 @@ def __init__(self, node_id, lightning_dir, bitcoind, executor, valgrind, may_fai
             if SLOW_MACHINE:
                 self.daemon.cmd_prefix += ['--read-inline-info=no']
 
-        if self.daemon.opts.get('disable-plugin') == 'cln-grpc':
+        if self.daemon.opts.get('disable-plugin') == 'cln-grpc' or env('RUST') == '0':
             self.grpc_port = None
         else:
             if grpc_port: