diff --git a/nix.spec.in b/nix.spec.in
index ff0be264e..49d73a348 100644
--- a/nix.spec.in
+++ b/nix.spec.in
@@ -22,6 +22,7 @@ Requires: /usr/bin/perl
 Requires: curl
 Requires: perl-DBD-SQLite
 Requires: bzip2
+Requires: xz
 BuildRequires: bzip2-devel
 BuildRequires: sqlite-devel