diff --git a/lib/collection.ts b/lib/collection.ts
index 2475daae..63986d2a 100644
--- a/lib/collection.ts
+++ b/lib/collection.ts
@@ -1655,6 +1655,7 @@ export class Collection {
             new MutateInResult({
               content: content,
               cas: resp.cas,
+              token: resp.token,
             })
           )
           return
diff --git a/lib/crudoptypes.ts b/lib/crudoptypes.ts
index 44f2f870..87f6e3ca 100644
--- a/lib/crudoptypes.ts
+++ b/lib/crudoptypes.ts
@@ -234,12 +234,18 @@ export class MutateInResult {
    */
   cas: Cas
 
+  /**
+   * The token representing the mutation performed.
+   */
+  token?: MutationToken
+
   /**
    * @internal
    */
   constructor(data: MutateInResult) {
     this.content = data.content
     this.cas = data.cas
+    this.token = data.token
   }
 }
 
diff --git a/test/crud.test.js b/test/crud.test.js
index 1258a91a..1704cdf8 100644
--- a/test/crud.test.js
+++ b/test/crud.test.js
@@ -1252,6 +1252,7 @@ function genericTests(collFn) {
       ])
       assert.isObject(res)
       assert.isOk(res.cas)
+      validateMutationToken(res.token)
 
       assert.isUndefined(res.content[0].error)
       assert.strictEqual(res.content[0].value, 5)
@@ -1311,6 +1312,7 @@ function genericTests(collFn) {
       )
       assert.isObject(res)
       assert.isOk(res.cas)
+      validateMutationToken(res.token)
 
       assert.isUndefined(res.content[0].error)
       assert.strictEqual(res.content[0].value, 5)
@@ -1358,6 +1360,7 @@ function genericTests(collFn) {
       )
       assert.isObject(res)
       assert.isOk(res.cas)
+      validateMutationToken(res.token)
 
       assert.isUndefined(res.content[0].error)
       assert.strictEqual(res.content[0].value, 5)