diff --git a/packages/replay-internal/src/types/performance.ts b/packages/replay-internal/src/types/performance.ts
index fa996254a12c..f598581c93ab 100644
--- a/packages/replay-internal/src/types/performance.ts
+++ b/packages/replay-internal/src/types/performance.ts
@@ -110,11 +110,11 @@ export interface WebVitalData {
   /**
    * The recording id of the web vital nodes. -1 if not found
    */
-  nodeIds: number[] | undefined;
+  nodeIds?: number[];
   /**
    * The layout shifts of a CLS metric
    */
-  attributions: { value: number; nodeIds: number[] | undefined }[] | undefined;
+  attributions?: { value: number; nodeIds: number[] | undefined }[];
 }
 
 /**
diff --git a/packages/replay-internal/src/util/createPerformanceEntries.ts b/packages/replay-internal/src/util/createPerformanceEntries.ts
index 52f2f19ec15b..c28e69caee00 100644
--- a/packages/replay-internal/src/util/createPerformanceEntries.ts
+++ b/packages/replay-internal/src/util/createPerformanceEntries.ts
@@ -58,11 +58,6 @@ interface LayoutShiftAttribution {
   currentRect: DOMRectReadOnly;
 }
 
-interface Attribution {
-  value: number;
-  nodeIds: number[] | undefined;
-}
-
 /**
  * Handler creater for web vitals
  */
@@ -206,7 +201,7 @@ function isLayoutShift(entry: PerformanceEntry): entry is LayoutShift {
  * Add a CLS event to the replay based on a CLS metric.
  */
 export function getCumulativeLayoutShift(metric: Metric): ReplayPerformanceEntry<WebVitalData> {
-  const layoutShifts: Attribution[] = [];
+  const layoutShifts: WebVitalData['attributions'] = [];
   const nodes: Node[] = [];
   for (const entry of metric.entries) {
     if (isLayoutShift(entry)) {
@@ -252,7 +247,7 @@ function getWebVital(
   metric: Metric,
   name: string,
   nodes: Node[] | undefined,
-  attributions?: Attribution[],
+  attributions?: WebVitalData['attributions'],
 ): ReplayPerformanceEntry<WebVitalData> {
   const value = metric.value;
   const rating = metric.rating;