diff --git a/krebs/5pkgs/haskell/X11-aeson.nix b/krebs/5pkgs/haskell/X11-aeson.nix
new file mode 100644
index 000000000..7db6c28a8
--- /dev/null
+++ b/krebs/5pkgs/haskell/X11-aeson.nix
@@ -0,0 +1,13 @@
+{ mkDerivation, aeson, base, fetchgit, stdenv, X11 }:
+mkDerivation {
+  pname = "X11-aeson";
+  version = "1.0.0";
+  src = fetchgit {
+    url = "https://cgit.krebsco.de/X11-aeson";
+    sha256 = "0y9nvssqpvqgl46g7nz9738l8jmpa7an8r3am3qaqcvmvzgwxh0d";
+    rev = "c0a70a62513baf2b437db4ebe3e5a32e3cfa5905";
+    fetchSubmodules = true;
+  };
+  libraryHaskellDepends = [ aeson base X11 ];
+  license = stdenv.lib.licenses.mit;
+}