diff --git a/pkgs/games/liquidwar/default.nix b/pkgs/games/liquidwar/default.nix
index ccab07308fd9..04640095ec0c 100644
--- a/pkgs/games/liquidwar/default.nix
+++ b/pkgs/games/liquidwar/default.nix
@@ -26,6 +26,8 @@ stdenv.mkDerivation rec {
 
   hardeningDisable = [ "format" ];
 
+  NIX_CFLAGS_COMPILE = "-Wno-error=deprecated-declarations";
+
   # To avoid problems finding SDL_types.h.
   configureFlags = [ "CFLAGS=-I${SDL.dev}/include/SDL" ];