diff --git a/crates/lib/pager/src/client/pager_client.rs b/crates/lib/pager/src/client/pager_client.rs
index 74aee2be06..87a2cc6ffb 100644
--- a/crates/lib/pager/src/client/pager_client.rs
+++ b/crates/lib/pager/src/client/pager_client.rs
@@ -135,7 +135,7 @@ impl PagerClient {
       notification_target_type: notification_target_type.clone(),
       notification_target_id: notification_target_id.clone(),
       labels,
-      deduplication_key: None,
+      deduplication_key: Some(notification.to_deduplication_key()),
     }).await;
 
     match result {