diff --git a/devtools/projects/ng-devtools-backend/src/lib/hooks/profiler/native.ts b/devtools/projects/ng-devtools-backend/src/lib/hooks/profiler/native.ts
index 7f474baea23..c9e05625fed 100644
--- a/devtools/projects/ng-devtools-backend/src/lib/hooks/profiler/native.ts
+++ b/devtools/projects/ng-devtools-backend/src/lib/hooks/profiler/native.ts
@@ -43,7 +43,7 @@ export class NgProfiler extends Profiler {
 
   private _initialize(): void {
     ngDebugClient().ɵsetProfiler(
-      (event: ɵProfilerEvent, instanceOrLView: {} | null, hookOrListener: any) =>
+      (event: ɵProfilerEvent, instanceOrLView: {} | null = null, hookOrListener: any) =>
         this._callbacks.forEach((cb) => cb(event, instanceOrLView, hookOrListener)),
     );
   }
diff --git a/packages/core/src/render3/profiler.ts b/packages/core/src/render3/profiler.ts
index 4684e1e42be..d52d232e00a 100644
--- a/packages/core/src/render3/profiler.ts
+++ b/packages/core/src/render3/profiler.ts
@@ -33,7 +33,7 @@ export const setProfiler = (profiler: Profiler | null) => {
  *  execution context
  * @returns
  */
-export const profiler: Profiler = function (event, instance, hookOrListener) {
+export const profiler: Profiler = function (event, instance = null, hookOrListener) {
   if (profilerCallback != null /* both `null` and `undefined` */) {
     profilerCallback(event, instance, hookOrListener);
   }
diff --git a/packages/core/src/render3/profiler_types.ts b/packages/core/src/render3/profiler_types.ts
index 5e7d155b55a..f8a42a2d844 100644
--- a/packages/core/src/render3/profiler_types.ts
+++ b/packages/core/src/render3/profiler_types.ts
@@ -160,5 +160,5 @@ export const enum ProfilerEvent {
  * Profiler function which the runtime will invoke before and after user code.
  */
 export interface Profiler {
-  (event: ProfilerEvent, instance: {} | null, hookOrListener?: (e?: any) => any): void;
+  (event: ProfilerEvent, instance?: {} | null, hookOrListener?: (e?: any) => any): void;
 }