diff --git a/pkgs/tools/backup/rdedup/default.nix b/pkgs/tools/backup/rdedup/default.nix
index b3cf971970a..1ed5bfd9ef8 100644
--- a/pkgs/tools/backup/rdedup/default.nix
+++ b/pkgs/tools/backup/rdedup/default.nix
@@ -13,9 +13,9 @@ rustPlatform.buildRustPackage rec {
     sha256 = "0y34a3mpghdmcb2rx4z62q0s351bfmy1287d75mm07ryfgglgsd7";
   };
 
-  cargoSha256 = "1zvg68ilgpnd95b36jvna9h1jr5d72x1a0g6flw2x6sd0msc0mdw";
+  cargoSha256 = "0akwb7ak4h1i1zk4wcn27zyqjz6mrchs47014xbzw22rj8h8dx92";
 
-  patches = [
+  cargoPatches = [
     ./v3.1.1-fix-Cargo.lock.patch
   ];