diff --git a/triagebot.toml b/triagebot.toml
index 805baf2af6dd..79b6c2b792ff 100644
--- a/triagebot.toml
+++ b/triagebot.toml
@@ -49,6 +49,9 @@ new_pr = true
 # These labels are set when there are unresolved concerns, removed otherwise
 labels = ["S-waiting-on-concerns"]
 
+# Show differences when a PR is rebased
+[range-diff]
+
 [assign]
 contributing_url = "https://github.com/rust-lang/rust-clippy/blob/master/CONTRIBUTING.md"
 users_on_vacation = [