diff --git a/rust-zip.spec b/rust-zip.spec
index 719c26b..7913b19 100644
--- a/rust-zip.spec
+++ b/rust-zip.spec
@@ -14,6 +14,7 @@ License:        MIT
 URL:            https://crates.io/crates/zip
 Source:         %{crates_source}
 # Update walkdir to the version in Fedora
+# https://github.com/mvdnes/zip-rs/pull/169
 Patch0:         zip-update-walkdir.diff
 
 ExclusiveArch:  %{rust_arches}