diff --git a/release/cibuild.py b/release/cibuild.py
index bbfb4984b..9ff95554a 100755
--- a/release/cibuild.py
+++ b/release/cibuild.py
@@ -364,7 +364,7 @@ def build_docker_image(be: BuildEnviron):  # pragma: no cover
         "-i",
         "-t",
         be.docker_tag,
-        "mitmproxy",
+        "mitmdump",
         "--version",
     ], check=True)
     assert "Mitmproxy: " + be.version in r.stdout.decode()