From 3ecde0148fa3ba47dfd3784379d3f110d8a55a05 Mon Sep 17 00:00:00 2001
From: Nicolas Mattia <nicolas@nmattia.com>
Date: Sat, 30 Nov 2019 12:15:09 +0100
Subject: [PATCH] Fix error message in sources.nix

---
 nix/sources.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nix/sources.nix b/nix/sources.nix
index bb49bdd..4da3d63 100644
--- a/nix/sources.nix
+++ b/nix/sources.nix
@@ -83,7 +83,7 @@ let
     else if spec.type == "builtin-tarball" then fetch_builtin-tarball spec
     else if spec.type == "builtin-url" then fetch_builtin-url spec
     else
-      abort "ERROR: niv spec ${name} has unknown type ${builtins.fromJSON spec.type}";
+      abort "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
 
   # Ports of functions for older nix versions