diff --git a/packages/beacon-node/src/metrics/metrics/lodestar.ts b/packages/beacon-node/src/metrics/metrics/lodestar.ts
index 130ea290784c..8b55faa83c55 100644
--- a/packages/beacon-node/src/metrics/metrics/lodestar.ts
+++ b/packages/beacon-node/src/metrics/metrics/lodestar.ts
@@ -110,10 +110,10 @@ export function createLodestarMetrics(
         help: "Current count of pending items in reqRespBridgeReqCaller data structure",
       }),
     },
-    networkWorkerWireEventsOnMainThreadLatencySec: register.histogram<"eventName" | "eventDirection">({
+    networkWorkerWireEventsOnMainThreadLatencySec: register.histogram<"eventName">({
       name: "lodestar_network_worker_wire_events_on_main_thread_latency",
       help: "Latency to transmit network events to main thread across worker port",
-      labelNames: ["eventName", "eventDirection"],
+      labelNames: ["eventName"],
       buckets: [0.001, 0.003, 0.01, 0.03, 0.1],
     }),
 
diff --git a/packages/beacon-node/src/network/core/metrics.ts b/packages/beacon-node/src/network/core/metrics.ts
index 9e7c8d7f5137..7bddeafbe5c3 100644
--- a/packages/beacon-node/src/network/core/metrics.ts
+++ b/packages/beacon-node/src/network/core/metrics.ts
@@ -318,10 +318,10 @@ export function getNetworkCoreWorkerMetrics(register: RegistryMetricCreator) {
       name: "lodestar_network_worker_reqresp_bridge_caller_pending_count",
       help: "Current count of pending elements in respBridgeCaller",
     }),
-    networkWorkerWireEventsOnWorkerThreadLatencySec: register.histogram<"eventName" | "eventDirection">({
+    networkWorkerWireEventsOnWorkerThreadLatencySec: register.histogram<"eventName">({
       name: "lodestar_network_worker_wire_events_on_worker_thread_latency",
       help: "Latency to transmit network events to worker thread across parent port",
-      labelNames: ["eventName", "eventDirection"],
+      labelNames: ["eventName"],
       buckets: [0.001, 0.003, 0.01, 0.03, 0.1],
     }),
   };
diff --git a/packages/beacon-node/src/util/workerEvents.ts b/packages/beacon-node/src/util/workerEvents.ts
index 37904f84b34a..a839a1c0b61c 100644
--- a/packages/beacon-node/src/util/workerEvents.ts
+++ b/packages/beacon-node/src/util/workerEvents.ts
@@ -43,10 +43,7 @@ export function wireEventsOnWorkerThread<EventData>(
       const [sec, nanoSec] = process.hrtime(data.posted);
       const networkWorkerLatency = sec + nanoSec / 1e9;
       metrics?.networkWorkerWireEventsOnWorkerThreadLatencySec.observe(
-        {
-          eventName: data.event as string,
-          eventDirection: "mainToWorker",
-        },
+        {eventName: data.event as string},
         networkWorkerLatency
       );
       // logger.trace("network worker message latency", networkWorkerLatency);
@@ -89,10 +86,7 @@ export function wireEventsOnMainThread<EventData>(
       const [sec, nanoSec] = process.hrtime(data.posted);
       const networkWorkerLatency = sec + nanoSec / 1e9;
       metrics?.networkWorkerWireEventsOnMainThreadLatencySec.observe(
-        {
-          eventName: data.event as string,
-          eventDirection: "workerToMain",
-        },
+        {eventName: data.event as string},
         networkWorkerLatency
       );
       // logger.trace("network worker message latency", networkWorkerLatency);