diff --git a/debian/changelog b/debian/changelog
index b1c55c0..3fbaed8 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+golang-github-ianlancetaylor-demangle (0.0~git20200824.28f6c0f-2) UNRELEASED; urgency=medium
+
+  * Set upstream metadata fields: Bug-Database, Bug-Submit.
+
+ -- Debian Janitor <janitor@jelmer.uk>  Fri, 24 Sep 2021 05:01:52 -0000
+
 golang-github-ianlancetaylor-demangle (0.0~git20200824.28f6c0f-1) unstable; urgency=medium
 
   * Team upload.
diff --git a/debian/upstream/metadata b/debian/upstream/metadata
new file mode 100644
index 0000000..d414b01
--- /dev/null
+++ b/debian/upstream/metadata
@@ -0,0 +1,3 @@
+---
+Bug-Database: https://github.com/ianlancetaylor/demangle/issues
+Bug-Submit: https://github.com/ianlancetaylor/demangle/issues/new