diff --git a/config/config-docker.yml b/config/config-docker.yml
index 74449a4..63f8d0d 100644
--- a/config/config-docker.yml
+++ b/config/config-docker.yml
@@ -15,6 +15,7 @@ bbn:
 poller:
   param-polling-interval: 60s
   expiry-checker-polling-interval: 10s
+  expired-delegations-limit: 100
 queue:
   queue_user: user # can be replaced by values in .env file
   queue_password: password
diff --git a/config/config-local.yml b/config/config-local.yml
index 468cf6a..001ecb3 100644
--- a/config/config-local.yml
+++ b/config/config-local.yml
@@ -15,6 +15,7 @@ bbn:
 poller:
   param-polling-interval: 10s
   expiry-checker-polling-interval: 10s
+  expired-delegations-limit: 100
 queue:
   queue_user: user # can be replaced by values in .env file
   queue_password: password
diff --git a/internal/db/model/setup.go b/internal/db/model/setup.go
index 49bcfd3..a38e707 100644
--- a/internal/db/model/setup.go
+++ b/internal/db/model/setup.go
@@ -28,6 +28,7 @@ type index struct {
 var collections = map[string][]index{
 	FinalityProviderDetailsCollection: {{Indexes: map[string]int{}}},
 	BTCDelegationDetailsCollection:    {{Indexes: map[string]int{}}},
+	TimeLockCollection:                {{Indexes: map[string]int{}}},
 	GlobalParamsCollection:            {{Indexes: map[string]int{}}},
 }