diff --git a/pkgs/by-name/as/as-tree/package.nix b/pkgs/by-name/as/as-tree/package.nix
index e8f8cde8739e..c8d28399f874 100644
--- a/pkgs/by-name/as/as-tree/package.nix
+++ b/pkgs/by-name/as/as-tree/package.nix
@@ -6,7 +6,7 @@
 
 rustPlatform.buildRustPackage {
   pname = "as-tree";
-  version = "unstable-2021-03-09";
+  version = "0.12.0-unstable-2021-03-09";
 
   src = fetchFromGitHub {
     owner = "jez";