diff --git a/x-pack/plugins/monitoring/common/types/es.ts b/x-pack/plugins/monitoring/common/types/es.ts
index 977753de42d9..013d504fa8a7 100644
--- a/x-pack/plugins/monitoring/common/types/es.ts
+++ b/x-pack/plugins/monitoring/common/types/es.ts
@@ -17,6 +17,7 @@ export interface ElasticsearchResponse {
 }
 
 export interface ElasticsearchResponseHit {
+  _id: string;
   _index: string;
   _source: ElasticsearchSource;
   inner_hits?: {
diff --git a/x-pack/plugins/monitoring/server/lib/elasticsearch/shards/get_shard_allocation.test.js b/x-pack/plugins/monitoring/server/lib/elasticsearch/shards/get_shard_allocation.test.js
index 9c778553ca1a..a89934d38674 100644
--- a/x-pack/plugins/monitoring/server/lib/elasticsearch/shards/get_shard_allocation.test.js
+++ b/x-pack/plugins/monitoring/server/lib/elasticsearch/shards/get_shard_allocation.test.js
@@ -37,8 +37,11 @@ describe('get_shard_allocation', () => {
   describe('handleResponse', () => {
     it('deduplicates shards', () => {
       const nextTimestamp = '2018-07-06T00:00:01.259Z';
-      const hits = shards.map((shard) => {
+      const hits = shards.map((shard, index) => {
         return {
+          _id: `STATE_UUID:${shard.node}:${shard.index}:s${shard.shard}:${
+            shard.primary ? 'p' : `r${index}`
+          }`,
           _source: {
             ...exampleShardSource,
             shard,
diff --git a/x-pack/plugins/monitoring/server/lib/elasticsearch/shards/get_shard_allocation.ts b/x-pack/plugins/monitoring/server/lib/elasticsearch/shards/get_shard_allocation.ts
index ab4fc1286d56..dd61ad4e1e59 100644
--- a/x-pack/plugins/monitoring/server/lib/elasticsearch/shards/get_shard_allocation.ts
+++ b/x-pack/plugins/monitoring/server/lib/elasticsearch/shards/get_shard_allocation.ts
@@ -36,9 +36,8 @@ export function handleResponse(response: ElasticsearchResponse) {
         mbShard?.shard?.relocating_node?.id ?? legacyShard?.relocating_node ?? null;
       const node = mbShard?.node?.id ?? legacyShard?.node;
       // note: if the request is for a node, then it's enough to deduplicate without primary, but for indices it displays both
-      const shardId = `${index}-${shardNumber}-${primary}-${relocatingNode}-${node}`;
 
-      if (!uniqueShards.has(shardId)) {
+      if (!uniqueShards.has(hit._id)) {
         // @ts-ignore
         shards.push({
           index,
@@ -48,7 +47,7 @@ export function handleResponse(response: ElasticsearchResponse) {
           shard: shardNumber,
           state: legacyShard?.state ?? mbShard?.shard?.state,
         });
-        uniqueShards.add(shardId);
+        uniqueShards.add(hit._id);
       }
     }
 
diff --git a/x-pack/plugins/monitoring/server/lib/logstash/get_node_info.test.ts b/x-pack/plugins/monitoring/server/lib/logstash/get_node_info.test.ts
index a43eb9a7cd09..50410f4ef0ea 100644
--- a/x-pack/plugins/monitoring/server/lib/logstash/get_node_info.test.ts
+++ b/x-pack/plugins/monitoring/server/lib/logstash/get_node_info.test.ts
@@ -33,6 +33,7 @@ jest.mock('../../static_globals', () => ({
 // deletes, adds, or updates the properties based on a default object
 function createResponseObjHit(params?: HitParams[]): ElasticsearchResponseHit {
   const defaultResponseObj: ElasticsearchResponseHit = {
+    _id: '123123a',
     _index: 'index',
     _source: {
       cluster_uuid: '123',