diff --git a/pkgs/by-name/ra/rauthy/package.nix b/pkgs/by-name/ra/rauthy/package.nix
index 4277dd469d50..0d154575efe4 100644
--- a/pkgs/by-name/ra/rauthy/package.nix
+++ b/pkgs/by-name/ra/rauthy/package.nix
@@ -11,6 +11,7 @@
   wasm-bindgen-cli_0_2_108,
   binaryen,
   lld,
+  rust-jemalloc-sys-unprefixed,
 }:
 let
   version = "0.34.3";
@@ -98,6 +99,8 @@ rustPlatform.buildRustPackage (finalAttrs: {
     perl
   ];
 
+  buildInputs = [ rust-jemalloc-sys-unprefixed ];
+
   preBuild = ''
     cp -r ${frontend}/lib/node_modules/frontend/dist/templates/html/ templates/html
     cp -r ${frontend}/lib/node_modules/frontend/dist/static/ static