diff --git a/pkgs/tools/security/pius/default.nix b/pkgs/tools/security/pius/default.nix
index 908a47e6326f..90cc57022ce2 100644
--- a/pkgs/tools/security/pius/default.nix
+++ b/pkgs/tools/security/pius/default.nix
@@ -1,4 +1,4 @@
-{ fetchFromGitHub, stdenv, pythonPackages, gnupg }:
+{ fetchFromGitHub, stdenv, pythonPackages, gnupg, perl }:
 
 let version = "2.2.4"; in
 pythonPackages.buildPythonApplication {
@@ -18,6 +18,8 @@ pythonPackages.buildPythonApplication {
     done
   '';
 
+  buildInputs = [ perl ];
+
   meta = {
     homepage = https://www.phildev.net/pius/;