diff --git a/debian/control b/debian/control
index 171bb28e739934dbf8ae7b8cd33d680854fb5263..d6988c7bddc3d099687747917e9137e48ae7a268 100644
--- a/debian/control
+++ b/debian/control
@@ -9,5 +9,6 @@ XS-Go-Import-Path: git.autistici.org/ai3/tools/postfix-policyd-proxy
 Package: postfix-policyd-proxy
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}
+Built-Using: ${misc:Built-Using}
 Description: Postfix policyd proxy
  Proxy for postfix policy services, directed by a LDAP backend.