diff --git a/pkgs/development/libraries/libpsl/default.nix b/pkgs/development/libraries/libpsl/default.nix
index d2012760dcf6..fdc352869f0a 100644
--- a/pkgs/development/libraries/libpsl/default.nix
+++ b/pkgs/development/libraries/libpsl/default.nix
@@ -32,6 +32,7 @@ stdenv.mkDerivation rec {
     pkgconfig
     python3
     valgrind
+    libxslt
   ];
 
   buildInputs = [