diff --git a/debian/BUILD b/debian/BUILD
index 64aa2369a..32cc209bf 100644
--- a/debian/BUILD
+++ b/debian/BUILD
@@ -29,6 +29,9 @@ pkg_deb(
         arm64 = "arm64",
     ),
     changes = "runsc.changes",
+    conffiles = [
+        "/etc/containerd/runsc.toml",
+    ],
     data = ":debian-data",
     deb = "runsc.deb",
     # Note that the description_file will be flatten (all newlines removed),