diff --git a/pkgs/applications/version-management/cvs/default.nix b/pkgs/applications/version-management/cvs/default.nix
index e9de202a809..4912ce0b3e6 100644
--- a/pkgs/applications/version-management/cvs/default.nix
+++ b/pkgs/applications/version-management/cvs/default.nix
@@ -10,6 +10,8 @@ stdenv.mkDerivation {
 
   patches = [ ./getcwd-chroot.patch ];
 
+  hardening_format = false;
+
   preConfigure = ''
     # Apply the Debian patches.
     for p in "debian/patches/"*; do