diff --git a/flake.nix b/flake.nix
index 5d64f032ef..9e98edcbaf 100644
--- a/flake.nix
+++ b/flake.nix
@@ -41,6 +41,7 @@
                     retro68.tools
                     cmake
                     gnumake
+                    ninja
                   ];
                   buildInputs = [ cross.retro68.console ];
                 } // cross)