diff --git a/types/node/perf_hooks.d.ts b/types/node/perf_hooks.d.ts
index 02f330c7b1d468..5bfb931c19858b 100644
--- a/types/node/perf_hooks.d.ts
+++ b/types/node/perf_hooks.d.ts
@@ -84,7 +84,7 @@ declare module 'perf_hooks' {
          * Additional detail specific to the `entryType`.
          * @since v16.0.0
          */
-        readonly details?: NodeGCPerformanceDetail | unknown | undefined; // TODO: Narrow this based on entry type.
+        readonly detail?: NodeGCPerformanceDetail | unknown | undefined; // TODO: Narrow this based on entry type.
     }
     /**
      * _This property is an extension by Node.js. It is not available in Web browsers._
diff --git a/types/node/test/perf_hooks.ts b/types/node/test/perf_hooks.ts
index 41c7de5f978d31..fca32a1516fe61 100644
--- a/types/node/test/perf_hooks.ts
+++ b/types/node/test/perf_hooks.ts
@@ -48,9 +48,9 @@ const performanceObserverCallback: PerformanceObserverCallback = (list, obs) =>
     const name: string = entries[0].name;
     const startTime: number = entries[0].startTime;
     const entryTypes: EntryType = entries[0].entryType;
-    const details: NodeGCPerformanceDetail = entries[0].details as NodeGCPerformanceDetail;
-    const kind: number | undefined = details.kind;
-    const flags: number | undefined = details.flags;
+    const detail: NodeGCPerformanceDetail = entries[0].detail as NodeGCPerformanceDetail;
+    const kind: number | undefined = detail.kind;
+    const flags: number | undefined = detail.flags;
 
     if (kind === constants.NODE_PERFORMANCE_GC_MAJOR) {
         if (flags === constants.NODE_PERFORMANCE_GC_FLAGS_ALL_EXTERNAL_MEMORY) {
@@ -64,7 +64,7 @@ obs.observe({
     entryTypes: ['gc'],
 });
 obs.observe({
-    type: 'gc'
+    type: 'gc',
 });
 
 const monitor: IntervalHistogram = monitorEventLoopDelay({