diff --git a/src/pages/[platform]/build-a-backend/functions/configure-functions/index.mdx b/src/pages/[platform]/build-a-backend/functions/configure-functions/index.mdx
index 240dbc7c68f..6de235f4748 100644
--- a/src/pages/[platform]/build-a-backend/functions/configure-functions/index.mdx
+++ b/src/pages/[platform]/build-a-backend/functions/configure-functions/index.mdx
@@ -69,14 +69,14 @@ export const myDemoFunction = defineFunction({
 });
 ```
 
-## `ephemeralStorageSize`
+## `ephemeralStorageSizeMB`
 
 By default, functions have 512MB of ephemeral storage to them. This can be configured from 512 MB upto 10240 MB. Note that this can increase the cost of function invocation. For more pricing information see [here](https://aws.amazon.com/lambda/pricing/).
 
 ```ts title="amplify/functions/my-demo-function/resource.ts"
 export const myDemoFunction = defineFunction({
   // highlight-next-line
-  ephemeralStorageSize: 1024 // allocate 1024 MB of ephemeral storage to the function.
+  ephemeralStorageSizeMB: 1024 // allocate 1024 MB of ephemeral storage to the function.
 });
 ```