diff --git a/pkgs/servers/http/lwan/default.nix b/pkgs/servers/http/lwan/default.nix
index 3e90857d8db8..7d6d34a6d2db 100644
--- a/pkgs/servers/http/lwan/default.nix
+++ b/pkgs/servers/http/lwan/default.nix
@@ -15,6 +15,9 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ jemalloc zlib ];
 
+  # Note: tcmalloc and mimalloc are also supported (and normal malloc)
+  cmakeFlags = [ "-DUSE_ALTERNATIVE_MALLOC=jemalloc" ];
+
   meta = with lib; {
     description = "Lightweight high-performance multi-threaded web server";
     longDescription = "A lightweight and speedy web server with a low memory