diff --git a/pkgs/applications/audio/ams-lv2/default.nix b/pkgs/applications/audio/ams-lv2/default.nix
index 34f5667bfca..a978b67c5dc 100644
--- a/pkgs/applications/audio/ams-lv2/default.nix
+++ b/pkgs/applications/audio/ams-lv2/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchFromGitHub, cairo, fftw, gtkmm2, lv2, lvtk, pkgconfig
-, wafHook }:
+, wafHook, python3 }:
 
 stdenv.mkDerivation  rec {
   pname = "ams-lv2";
@@ -12,7 +12,7 @@ stdenv.mkDerivation  rec {
     sha256 = "1lz2mvk4gqsyf92yxd3aaldx0d0qi28h4rnnvsaz4ls0ccqm80nk";
   };
 
-  nativeBuildInputs = [ pkgconfig wafHook ];
+  nativeBuildInputs = [ pkgconfig wafHook python3 ];
   buildInputs = [ cairo fftw gtkmm2 lv2 lvtk ];
 
   meta = with stdenv.lib; {