diff --git a/OCI/cmd b/OCI/cmd
index 23819fe..ca99caa 100644
--- a/OCI/cmd
+++ b/OCI/cmd
@@ -4,4 +4,4 @@ set -x
 set -e
 umask 0000
 ulimit -n 1024
-exec "$@"
+exec /usr/bin/python3 /app/sos-milter.py