diff --git a/src/cluster/Backend.cc b/src/cluster/Backend.cc
index 21600a731b..e7aed60faa 100644
--- a/src/cluster/Backend.cc
+++ b/src/cluster/Backend.cc
@@ -27,41 +27,6 @@
 
 using namespace zeek::cluster;
 
-double Event::Timestamp() const {
-    if ( meta ) {
-        for ( const auto& m : *meta ) {
-            if ( m.Id() == static_cast<zeek_uint_t>(zeek::detail::MetadataType::NetworkTimestamp) )
-                return m.Val()->AsTime();
-        }
-    }
-
-    return zeek::detail::NO_TIMESTAMP;
-}
-
-bool Event::AddMetadata(const EnumValPtr& id, zeek::ValPtr val) {
-    if ( ! id || ! val )
-        return false;
-
-    const auto* desc = zeek::event_registry->LookupMetadata(id->Get());
-    if ( ! desc )
-        return false;
-
-    if ( ! same_type(val->GetType(), desc->Type()) )
-        return false;
-
-    if ( ! meta )
-        meta = std::make_unique<zeek::detail::EventMetadataVector>();
-
-    // Internally stored as zeek_uint_t for serializers.
-    meta->emplace_back(desc->Id(), std::move(val));
-
-    return true;
-}
-
-std::tuple<zeek::EventHandlerPtr, zeek::Args, zeek::detail::EventMetadataVectorPtr> Event::Take() && {
-    return {handler, std::move(args), std::move(meta)};
-}
-
 bool detail::LocalEventHandlingStrategy::DoProcessEvent(std::string_view topic, cluster::Event e) {
     auto [handler, args, meta] = std::move(e).Take();
     zeek::event_mgr.Enqueue(std::move(meta), handler, std::move(args), util::detail::SOURCE_BROKER);
diff --git a/src/cluster/Backend.h b/src/cluster/Backend.h
index db91f235bf..cc475d2ec1 100644
--- a/src/cluster/Backend.h
+++ b/src/cluster/Backend.h
@@ -9,13 +9,13 @@
 #include <string_view>
 #include <variant>
 
-#include "zeek/Event.h"
 #include "zeek/EventHandler.h"
 #include "zeek/Span.h"
 #include "zeek/Tag.h"
 #include "zeek/Val.h"
 #include "zeek/ZeekArgs.h"
 #include "zeek/cluster/BifSupport.h"
+#include "zeek/cluster/Event.h"
 #include "zeek/cluster/OnLoop.h"
 #include "zeek/cluster/Serializer.h"
 #include "zeek/cluster/Telemetry.h"
@@ -30,73 +30,6 @@ class OnLoopProcess;
 
 namespace cluster {
 
-/**
- * Cluster event class.
- */
-class Event {
-public:
-    /**
-     * Constructor.
-     */
-    Event(const EventHandlerPtr& handler, zeek::Args args, zeek::detail::EventMetadataVectorPtr meta)
-        : handler(handler), args(std::move(args)), meta(std::move(meta)) {}
-
-    /**
-     * @return The name of the event.
-     */
-    std::string_view HandlerName() const { return handler->Name(); }
-
-    /**
-     * @return The event's handler.
-     */
-    const EventHandlerPtr& Handler() const { return handler; }
-
-    /**
-     * @return The event's arguments.
-     */
-    const zeek::Args& Args() const { return args; }
-    /**
-     * @return The event's arguments.
-     */
-    zeek::Args& Args() { return args; }
-
-    /**
-     * @return The network timestamp metadata of this event or -1.0 if not set.
-     */
-    double Timestamp() const;
-
-    /**
-     * Add metadata to this cluster event.
-     *
-     * The used metadata \a id has to be registered via the Zeek script-layer
-     * function EventMetadata::register(), or via the C++ API
-     * EventMgr::RegisterMetadata() during an InitPostScript() hook.
-     *
-     * Non-registered metadata will not be added and false is returned.
-     *
-     * @param id The enum value identifying the event metadata.
-     * @param val The value to use.
-
-     * @return true if \a val was was added, else false.
-     */
-    bool AddMetadata(const EnumValPtr& id, ValPtr val);
-
-    /**
-     * @return A pointer to the metadata vector, or nullptr if no Metadata has been added yet.
-     */
-    const zeek::detail::EventMetadataVector* Metadata() const { return meta.get(); }
-
-    /**
-     * Move data out of this event as preparation for Enqueue()
-     */
-    std::tuple<zeek::EventHandlerPtr, zeek::Args, zeek::detail::EventMetadataVectorPtr> Take() &&;
-
-private:
-    EventHandlerPtr handler;
-    zeek::Args args;
-    zeek::detail::EventMetadataVectorPtr meta;
-};
-
 namespace detail {
 
 /**
diff --git a/src/cluster/CMakeLists.txt b/src/cluster/CMakeLists.txt
index 29f8a9debe..2bc9bddc16 100644
--- a/src/cluster/CMakeLists.txt
+++ b/src/cluster/CMakeLists.txt
@@ -7,6 +7,7 @@ zeek_add_subdir_library(
     Backend.cc
     BifSupport.cc
     Component.cc
+    Event.cc
     Manager.cc
     Telemetry.cc
     BIFS
diff --git a/src/cluster/Event.cc b/src/cluster/Event.cc
new file mode 100644
index 0000000000..f75ff5434c
--- /dev/null
+++ b/src/cluster/Event.cc
@@ -0,0 +1,43 @@
+// See the file "COPYING" in the main distribution directory for copyright.
+
+#include "zeek/cluster/Event.h"
+
+#include "zeek/Event.h"
+#include "zeek/EventRegistry.h"
+
+using namespace zeek::cluster;
+
+double Event::Timestamp() const {
+    if ( meta ) {
+        for ( const auto& m : *meta ) {
+            if ( m.Id() == static_cast<zeek_uint_t>(zeek::detail::MetadataType::NetworkTimestamp) )
+                return m.Val()->AsTime();
+        }
+    }
+
+    return zeek::detail::NO_TIMESTAMP;
+}
+
+bool Event::AddMetadata(const EnumValPtr& id, zeek::ValPtr val) {
+    if ( ! id || ! val )
+        return false;
+
+    const auto* desc = zeek::event_registry->LookupMetadata(id->Get());
+    if ( ! desc )
+        return false;
+
+    if ( ! same_type(val->GetType(), desc->Type()) )
+        return false;
+
+    if ( ! meta )
+        meta = std::make_unique<zeek::detail::EventMetadataVector>();
+
+    // Internally stored as zeek_uint_t for serializers.
+    meta->emplace_back(desc->Id(), std::move(val));
+
+    return true;
+}
+
+std::tuple<zeek::EventHandlerPtr, zeek::Args, zeek::detail::EventMetadataVectorPtr> Event::Take() && {
+    return {handler, std::move(args), std::move(meta)};
+}
diff --git a/src/cluster/Event.h b/src/cluster/Event.h
new file mode 100644
index 0000000000..56d8470a25
--- /dev/null
+++ b/src/cluster/Event.h
@@ -0,0 +1,82 @@
+// See the file "COPYING" in the main distribution directory for copyright.
+
+// Val-based representation of an event for cluster communication.
+
+#pragma once
+
+#include "zeek/Event.h"
+#include "zeek/EventHandler.h"
+#include "zeek/Val.h"
+#include "zeek/ZeekArgs.h"
+
+namespace zeek::cluster {
+
+/**
+ * Cluster event class.
+ */
+class Event {
+public:
+    /**
+     * Constructor.
+     */
+    Event(const EventHandlerPtr& handler, zeek::Args args, zeek::detail::EventMetadataVectorPtr meta)
+        : handler(handler), args(std::move(args)), meta(std::move(meta)) {}
+
+    /**
+     * @return The name of the event.
+     */
+    std::string_view HandlerName() const { return handler->Name(); }
+
+    /**
+     * @return The event's handler.
+     */
+    const EventHandlerPtr& Handler() const { return handler; }
+
+    /**
+     * @return The event's arguments.
+     */
+    const zeek::Args& Args() const { return args; }
+    /**
+     * @return The event's arguments.
+     */
+    zeek::Args& Args() { return args; }
+
+    /**
+     * @return The network timestamp metadata of this event or -1.0 if not set.
+     */
+    double Timestamp() const;
+
+    /**
+     * Add metadata to this cluster event.
+     *
+     * The used metadata \a id has to be registered via the Zeek script-layer
+     * function EventMetadata::register(), or via the C++ API
+     * EventMgr::RegisterMetadata() during an InitPostScript() hook.
+     *
+     * Non-registered metadata will not be added and false is returned.
+     *
+     * @param id The enum value identifying the event metadata.
+     * @param val The value to use.
+
+     * @return true if \a val was was added, else false.
+     */
+    bool AddMetadata(const EnumValPtr& id, ValPtr val);
+
+    /**
+     * @return A pointer to the metadata vector, or nullptr if no Metadata has been added yet.
+     */
+    const zeek::detail::EventMetadataVector* Metadata() const { return meta.get(); }
+
+    /**
+     * Move data out of this event as preparation for Enqueue()
+     */
+    std::tuple<zeek::EventHandlerPtr, zeek::Args, zeek::detail::EventMetadataVectorPtr> Take() &&;
+
+private:
+    EventHandlerPtr handler;
+    zeek::Args args;
+    zeek::detail::EventMetadataVectorPtr meta;
+};
+
+
+} // namespace zeek::cluster
diff --git a/src/cluster/serializer/broker/Serializer.cc b/src/cluster/serializer/broker/Serializer.cc
index 1abdca9d3b..e17ea9a38d 100644
--- a/src/cluster/serializer/broker/Serializer.cc
+++ b/src/cluster/serializer/broker/Serializer.cc
@@ -12,7 +12,7 @@
 #include "zeek/Reporter.h"
 #include "zeek/Type.h"
 #include "zeek/broker/Data.h"
-#include "zeek/cluster/Backend.h"
+#include "zeek/cluster/Event.h"
 
 #include "broker/data.bif.h"
 #include "broker/data_envelope.hh"