diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 209a90a1601..aaa48338d32 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3233,6 +3233,8 @@ in
 
   hardlink = callPackage ../tools/system/hardlink { };
 
+  hashcash = callPackage ../tools/security/hashcash { };
+
   hashcat = callPackage ../tools/security/hashcat { };
 
   hash_extender = callPackage ../tools/security/hash_extender { };