diff --git a/pkgs/tools/networking/haproxy/default.nix b/pkgs/tools/networking/haproxy/default.nix
index eefa49acb93..bb79ad956a6 100644
--- a/pkgs/tools/networking/haproxy/default.nix
+++ b/pkgs/tools/networking/haproxy/default.nix
@@ -40,6 +40,7 @@ stdenv.mkDerivation rec {
     "USE_PCRE_JIT=yes"
   ] ++ lib.optionals useLua [
     "USE_LUA=yes"
+    "LUA_LIB_NAME=lua"
     "LUA_LIB=${lua5_3}/lib"
     "LUA_INC=${lua5_3}/include"
   ] ++ lib.optionals stdenv.isLinux [