diff --git a/debian/control b/debian/control
index 8ede04f..bdf7b36 100644
--- a/debian/control
+++ b/debian/control
@@ -3,6 +3,7 @@ Section: perl
 Priority: optional
 Maintainer: Sipwise Development Team <support@sipwise.com>
 Build-Depends:
+ libcryptx-perl (>= 0.034~),
  debhelper,
  libjson-maybexs-perl,
 Build-Depends-Indep: