diff --git a/scripts/base/frameworks/cluster/main.zeek b/scripts/base/frameworks/cluster/main.zeek
index d56b4f5655..bff45bf29e 100644
--- a/scripts/base/frameworks/cluster/main.zeek
+++ b/scripts/base/frameworks/cluster/main.zeek
@@ -585,7 +585,7 @@ function log(msg: string)
 
 function init(): bool
 	{
-	return Cluster::Backend::__init();
+	return Cluster::Backend::__init(Cluster::node_id());
 	}
 
 function subscribe(topic: string): bool
diff --git a/src/cluster/Backend.h b/src/cluster/Backend.h
index bef6e3fa4e..a0eb6c4412 100644
--- a/src/cluster/Backend.h
+++ b/src/cluster/Backend.h
@@ -149,8 +149,14 @@ public:
 
     /**
      * Method invoked from the Cluster::Backend::__init() bif.
+     *
+     * @param nid The node identifier to use.
      */
-    bool Init() { return DoInit(); }
+    bool Init(std::string nid) {
+        node_id = std::move(nid);
+
+        return DoInit();
+    }
 
     /**
      * Hook invoked when Zeek is about to terminate.
@@ -209,6 +215,11 @@ public:
         return DoPublishLogWrites(header, records);
     }
 
+    /**
+     * @return This backend's node identifier.
+     */
+    const std::string& NodeId() const { return node_id; }
+
 protected:
     /**
      * Constructor.
@@ -362,6 +373,11 @@ private:
     std::unique_ptr<EventSerializer> event_serializer;
     std::unique_ptr<LogSerializer> log_serializer;
     std::unique_ptr<detail::EventHandlingStrategy> event_handling_strategy;
+
+    /**
+     * The backend's instance cluster node identifier.
+     */
+    std::string node_id;
 };
 
 /**
diff --git a/src/cluster/cluster.bif b/src/cluster/cluster.bif
index 2ec1e81c92..ec2c8f115e 100644
--- a/src/cluster/cluster.bif
+++ b/src/cluster/cluster.bif
@@ -64,9 +64,9 @@ function Cluster::__unsubscribe%(topic_prefix: string%): bool
 ## Initialize the global cluster backend.
 ##
 ## Returns: true on success.
-function Cluster::Backend::__init%(%): bool
+function Cluster::Backend::__init%(nid: string%): bool
 	%{
-	auto rval = zeek::cluster::backend->Init();
+	auto rval = zeek::cluster::backend->Init(nid->ToStdString());
 	return zeek::val_mgr->Bool(rval);
 	%}