diff --git a/deltachat2/transport.py b/deltachat2/transport.py
index c48827e..bfbc390 100644
--- a/deltachat2/transport.py
+++ b/deltachat2/transport.py
@@ -71,7 +71,7 @@ class IOTransport:
             # `process_group` is not supported before Python 3.11.
             kwargs = {"preexec_fn": os.setpgrp, **self._kwargs}  # noqa: PLW1509
         self.process = subprocess.Popen(  # pylint:disable=consider-using-with
-            "deltachat-rpc-server",
+            "@deltachatrpcserver@",
             stdin=subprocess.PIPE,
             stdout=subprocess.PIPE,
             **kwargs,