diff --git a/services/nix-cache/build-flakes.nix b/services/nix-cache/build-flakes.nix
index 38c028b..ca0fc40 100644
--- a/services/nix-cache/build-flakes.nix
+++ b/services/nix-cache/build-flakes.nix
@@ -7,6 +7,7 @@ let
       nix
       nixos-rebuild
       jq
+      curl
     ];
     text = builtins.readFile ./build-flakes.sh;
   };