diff --git a/pkgs/servers/web-apps/discourse/default.nix b/pkgs/servers/web-apps/discourse/default.nix
index 02ebb40d3843..12ae858ea3a4 100644
--- a/pkgs/servers/web-apps/discourse/default.nix
+++ b/pkgs/servers/web-apps/discourse/default.nix
@@ -1,7 +1,7 @@
 { stdenv, makeWrapper, runCommandNoCC, lib, nixosTests, writeShellScript
 , fetchFromGitHub, bundlerEnv, ruby, replace, gzip, gnutar, git, cacert
 , util-linux, gawk, imagemagick, optipng, pngquant, libjpeg, jpegoptim
-, gifsicle, libpsl, redis, postgresql, which, brotli, procps
+, gifsicle, libpsl, redis, postgresql, which, brotli, procps, rsync
 , nodePackages, v8
 }:
 
@@ -18,6 +18,7 @@ let
   runtimeDeps = [
     # For backups, themes and assets
     rubyEnv.wrappedRuby
+    rsync
     gzip
     gnutar
     git