diff --git a/pkgs/tools/backup/btrbk/default.nix b/pkgs/tools/backup/btrbk/default.nix
index cd91d51d960..63808d48512 100644
--- a/pkgs/tools/backup/btrbk/default.nix
+++ b/pkgs/tools/backup/btrbk/default.nix
@@ -24,12 +24,6 @@ stdenv.mkDerivation rec {
     # Tainted Mode disables PERL5LIB
     substituteInPlace btrbk --replace "perl -T" "perl"
 
-    # Fix btrbk-mail
-    substituteInPlace contrib/cron/btrbk-mail \
-      --replace "/bin/date" "${coreutils}/bin/date" \
-      --replace "/bin/echo" "${coreutils}/bin/echo" \
-      --replace '$btrbk' 'btrbk'
-
     # Fix SSH filter script
     sed -i '/^export PATH/d' ssh_filter_btrbk.sh
     substituteInPlace ssh_filter_btrbk.sh --replace logger ${util-linux}/bin/logger