diff --git a/packages/aws-appsync/CHANGELOG.md b/packages/aws-appsync/CHANGELOG.md
index 89bcb1a4..5b3d2ec6 100644
--- a/packages/aws-appsync/CHANGELOG.md
+++ b/packages/aws-appsync/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+### vNext
+- Fix AWS_IAM credentials fetching [PR#XX](https://github.com/awslabs/aws-mobile-appsync-sdk-js/pull/XX)
+
 ### 1.0.8
 - Handle missing optimisticResponse [PR#34](https://github.com/awslabs/aws-mobile-appsync-sdk-js/pull/34)
 
diff --git a/packages/aws-appsync/src/link/auth-link.js b/packages/aws-appsync/src/link/auth-link.js
index e8cfafc5..d949683e 100644
--- a/packages/aws-appsync/src/link/auth-link.js
+++ b/packages/aws-appsync/src/link/auth-link.js
@@ -73,8 +73,8 @@ const iamBasedAuth = async ({ credentials, region, url }, operation, forward) =>
 
     let creds = typeof credentials === 'function' ? credentials.call() : credentials;
 
-    if (typeof creds.getPromise == 'function') {
-        creds = await creds.getPromise();
+    if (typeof creds.getPromise === 'function') {
+        await creds.getPromise();
     }
 
     const { accessKeyId, secretAccessKey, sessionToken } = await creds;