diff --git a/packages/schedule/src/Tracking.js b/packages/schedule/src/Tracking.js
index 7356445e74eff..050cc9be4216c 100644
--- a/packages/schedule/src/Tracking.js
+++ b/packages/schedule/src/Tracking.js
@@ -65,19 +65,14 @@ let threadIDCounter: number = 0;
 // Interactions "stack"–
 // Meaning that newly tracked interactions are appended to the previously active set.
 // When an interaction goes out of scope, the previous set (if any) is restored.
-let interactionsRef: InteractionsRef = (null: any);
+const interactionsRef: InteractionsRef = {
+  current: new Set(),
+};
 
 // Listener(s) to notify when interactions begin and end.
-let subscriberRef: SubscriberRef = (null: any);
-
-if (enableSchedulerTracking) {
-  interactionsRef = {
-    current: new Set(),
-  };
-  subscriberRef = {
-    current: null,
-  };
-}
+const subscriberRef: SubscriberRef = {
+  current: null,
+};
 
 export {interactionsRef as __interactionsRef, subscriberRef as __subscriberRef};
 
diff --git a/packages/schedule/src/__tests__/Tracking-test.internal.js b/packages/schedule/src/__tests__/Tracking-test.internal.js
index 8de0cbc4858f3..ce4b1973b4d5a 100644
--- a/packages/schedule/src/__tests__/Tracking-test.internal.js
+++ b/packages/schedule/src/__tests__/Tracking-test.internal.js
@@ -365,11 +365,5 @@ describe('Tracking', () => {
 
       wrappedCallback();
     });
-
-    describe('advanced integration', () => {
-      it('should not create unnecessary objects', () => {
-        expect(SchedulerTracking.__interactionsRef).toBe(null);
-      });
-    });
   });
 });
diff --git a/packages/schedule/src/__tests__/Tracking-test.js b/packages/schedule/src/__tests__/Tracking-test.js
index 6b340f8434e69..a83065a90c43d 100644
--- a/packages/schedule/src/__tests__/Tracking-test.js
+++ b/packages/schedule/src/__tests__/Tracking-test.js
@@ -48,4 +48,15 @@ describe('Tracking', () => {
 
     wrappedCallback();
   });
+
+  // Make sure that accidental pairing of react-dom/profiling production bundle,
+  // With production (non-profiling) schedule/tracking doesn't cause runtime error.
+  it('should always export non-null refs to avoid breaking react-dom/profiling bundle', () => {
+    expect(SchedulerTracking.__interactionsRef).toEqual({
+      current: new Set(),
+    })
+    expect(SchedulerTracking.__subscriberRef).toEqual({
+      current: null,
+    });
+  });
 });