diff --git a/x-pack/plugins/security_solution/public/timelines/components/timeline/query_tab_content/index.tsx b/x-pack/plugins/security_solution/public/timelines/components/timeline/query_tab_content/index.tsx
index 63e4497c116d..3dc2d98f1646 100644
--- a/x-pack/plugins/security_solution/public/timelines/components/timeline/query_tab_content/index.tsx
+++ b/x-pack/plugins/security_solution/public/timelines/components/timeline/query_tab_content/index.tsx
@@ -14,7 +14,7 @@ import {
   EuiBadge,
 } from '@elastic/eui';
 import { isEmpty } from 'lodash/fp';
-import React, { useState, useMemo, useEffect, useCallback } from 'react';
+import React, { useMemo, useEffect, useCallback } from 'react';
 import styled from 'styled-components';
 import { Dispatch } from 'redux';
 import { connect, ConnectedProps, useDispatch } from 'react-redux';
diff --git a/x-pack/plugins/security_solution/public/timelines/store/timeline/helpers.ts b/x-pack/plugins/security_solution/public/timelines/store/timeline/helpers.ts
index c46e3d328012..6ee844958aee 100644
--- a/x-pack/plugins/security_solution/public/timelines/store/timeline/helpers.ts
+++ b/x-pack/plugins/security_solution/public/timelines/store/timeline/helpers.ts
@@ -155,8 +155,8 @@ export const addTimelineToStore = ({
   return {
     ...timelineById,
     [id]: {
-      ...(timelineById[id] ? timelineById[id] : {}),
       ...timeline,
+      filterManager: timelineById[id].filterManager,
       isLoading: timelineById[id].isLoading,
       initialized: timelineById[id].initialized,
       dateRange:
diff --git a/x-pack/plugins/security_solution/public/timelines/store/timeline/reducer.test.ts b/x-pack/plugins/security_solution/public/timelines/store/timeline/reducer.test.ts
index c0dcba6920b6..c4061b7d845a 100644
--- a/x-pack/plugins/security_solution/public/timelines/store/timeline/reducer.test.ts
+++ b/x-pack/plugins/security_solution/public/timelines/store/timeline/reducer.test.ts
@@ -97,6 +97,7 @@ const basicTimeline: TimelineModel = {
   eventIdToNoteIds: {},
   excludedRowRendererIds: [],
   expandedDetail: {},
+  filterManager: 'mockFilterManager',
   highlightedDropAndProviderId: '',
   historyIds: [],
   id: 'foo',
@@ -194,6 +195,20 @@ describe('Timeline', () => {
         },
       });
     });
+
+    test('should contain existing filterManager', () => {
+      const update = addTimelineToStore({
+        id: 'foo',
+        timeline: {
+          ...basicTimeline,
+          status: TimelineStatus.immutable,
+          timelineType: TimelineType.template,
+        },
+        timelineById: timelineByIdMock,
+      });
+
+      expect(update.foo.filterManager).toEqual('mockFilterManager');
+    });
   });
 
   describe('#addNewTimeline', () => {