diff --git a/flake.nix b/flake.nix
index 8f0f062..1f45589 100644
--- a/flake.nix
+++ b/flake.nix
@@ -43,8 +43,10 @@
       url = "github:serokell/deploy-rs";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    nix-index-database.url = "github:nix-community/nix-index-database";
-    nix-index-database.inputs.nixpkgs.follows = "nixpkgs";
+    nix-index-database = {
+      url = "github:nix-community/nix-index-database";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =