diff --git a/pkgs/applications/networking/sync/rsync/default.nix b/pkgs/applications/networking/sync/rsync/default.nix
index 32236f36a9b9..4c38daf0d779 100644
--- a/pkgs/applications/networking/sync/rsync/default.nix
+++ b/pkgs/applications/networking/sync/rsync/default.nix
@@ -48,6 +48,9 @@ stdenv.mkDerivation rec {
     (lib.enableFeature enableOpenSSL "openssl")
     (lib.enableFeature enableXXHash "xxhash")
     (lib.enableFeature enableZstd "zstd")
+    # Feature detection does a runtime check which varies according to ipv6
+    # availability, so force it on to make reproducible, see #360152.
+    (lib.enableFeature true "ipv6")
     "--with-nobody-group=nogroup"
 
     # disable the included zlib explicitly as it otherwise still compiles and