diff --git a/rust-bors.toml b/rust-bors.toml
index 99842cc3e0188..94a1f7cf60816 100644
--- a/rust-bors.toml
+++ b/rust-bors.toml
@@ -77,6 +77,7 @@ auto_build_failed = [
     "-S-waiting-on-team",
 ]
 
+# Enable management of EC2 self-hosted runners
 [ec2_runners]
 runner_group_id = 8
 label_prefix = "ec2"
@@ -98,3 +99,6 @@ allowed_instances = [
     "c8a.8xlarge",
     "c8a.12xlarge",
 ]
+
+# Enable unrolling of rollup member PRs after rollup merge
+[unroll]