diff --git a/entrypoint.core.sh.tmpl b/entrypoint.core.sh.tmpl
index 13136fd..e34dd6a 100644
--- a/entrypoint.core.sh.tmpl
+++ b/entrypoint.core.sh.tmpl
@@ -263,6 +263,6 @@ fi
 mailman aliases
 
 # Now chown the places where mailman wants to write stuff.
-chown -Rf mailman /opt/mailman
+chown -Rf mailman /opt/mailman || true
 
 exec su-exec mailman "$@"