diff --git a/pkgs/by-name/nb/nb/package.nix b/pkgs/by-name/nb/nb/package.nix
index 624651e1ac5d..c94a44bc7cbd 100644
--- a/pkgs/by-name/nb/nb/package.nix
+++ b/pkgs/by-name/nb/nb/package.nix
@@ -8,7 +8,7 @@ stdenv.mkDerivation rec {
     owner = "xwmx";
     repo = "nb";
     rev = version;
-    sha256 = "sha256-VcYE1luwNtdrOmjTDKkIAX9rmcbFyCBtnib+c9FyJuA=";
+    hash = "sha256-VcYE1luwNtdrOmjTDKkIAX9rmcbFyCBtnib+c9FyJuA=";
   };
 
   nativeBuildInputs = [ installShellFiles ];