diff --git a/src/util/aws-util.ts b/src/util/aws-util.ts
index 8669461b..987b9d37 100644
--- a/src/util/aws-util.ts
+++ b/src/util/aws-util.ts
@@ -122,6 +122,7 @@ export class AwsUtil {
 
         // if the master accountId wasn't set before, then populate it with the current caller
         await AwsUtil.GetMasterAccountId();
+        await AwsUtil.GetPartitionFromCurrentSession();
 
         this.initialized = true;
     }