diff --git a/src/content/8/en/part8e.md b/src/content/8/en/part8e.md
index e479552243..eedb6f9117 100644
--- a/src/content/8/en/part8e.md
+++ b/src/content/8/en/part8e.md
@@ -589,7 +589,7 @@ const resolvers = {
   // highlight-start
   Subscription: {
     personAdded: {
-      subscribe: () => pubsub.asyncIterator('PERSON_ADDED')
+      subscribe: () => pubsub.asyncIterableIterator('PERSON_ADDED')
     },
   },
   // highlight-end
@@ -610,7 +610,7 @@ There are only a few lines of code added, but quite a lot is happening under the
 ```js
 Subscription: {
   personAdded: {
-    subscribe: () => pubsub.asyncIterator('PERSON_ADDED')
+    subscribe: () => pubsub.asyncIterableIterator('PERSON_ADDED')
   },
 },
 ```
diff --git a/src/content/8/es/part8e.md b/src/content/8/es/part8e.md
index 6399ac9803..21522db6b4 100644
--- a/src/content/8/es/part8e.md
+++ b/src/content/8/es/part8e.md
@@ -183,7 +183,7 @@ const pubsub = new PubSub() // highlight-line
   // highlight-start
   Subscription: {
     personAdded: {
-      subscribe: () => pubsub.asyncIterator(['PERSON_ADDED'])
+      subscribe: () => pubsub.asyncIterableIterator(['PERSON_ADDED'])
     },
   },
   // highlight-end
diff --git a/src/content/8/fi/osa8e.md b/src/content/8/fi/osa8e.md
index 5e6021806d..6056335b7e 100644
--- a/src/content/8/fi/osa8e.md
+++ b/src/content/8/fi/osa8e.md
@@ -588,7 +588,7 @@ const resolvers = {
   // highlight-start
   Subscription: {
     personAdded: {
-      subscribe: () => pubsub.asyncIterator('PERSON_ADDED')
+      subscribe: () => pubsub.asyncIterableIterator('PERSON_ADDED')
     },
   },
   // highlight-end
@@ -608,7 +608,7 @@ Koodia on vähän mutta konepellin alla tapahtuu paljon. Tilauksen _personAdded_
 ```js
 Subscription: {
   personAdded: {
-    subscribe: () => pubsub.asyncIterator('PERSON_ADDED')
+    subscribe: () => pubsub.asyncIterableIterator('PERSON_ADDED')
   },
 },
 ```
diff --git a/src/content/8/zh/part8e.md b/src/content/8/zh/part8e.md
index d0cc73b458..ea07677a3f 100644
--- a/src/content/8/zh/part8e.md
+++ b/src/content/8/zh/part8e.md
@@ -549,7 +549,7 @@ const pubsub = new PubSub() // highlight-line
   // highlight-start
   Subscription: {
     personAdded: {
-      subscribe: () => pubsub.asyncIterator(['PERSON_ADDED'])
+      subscribe: () => pubsub.asyncIterableIterator(['PERSON_ADDED'])
     },
   },
   // highlight-end