diff --git a/pkgs/games/asc/default.nix b/pkgs/games/asc/default.nix
index 9e9f188bf1b..778f5224d2d 100644
--- a/pkgs/games/asc/default.nix
+++ b/pkgs/games/asc/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   configureFlags = [ "--disable-paragui" "--disable-paraguitest" ];
 
-  NIX_CFLAGS_COMPILE = "-fpermissive"; # I'm too lazy to catch all gcc47-related problems
+  NIX_CFLAGS_COMPILE = "-fpermissive -Wno-error=narrowing"; # I'm too lazy to catch all gcc47-related problems
   hardeningDisable = [ "format" ];
 
   buildInputs = [