diff --git a/lib/msal-common/src/cache/CacheManager.ts b/lib/msal-common/src/cache/CacheManager.ts
index 88c09f5856..77e13e92d0 100644
--- a/lib/msal-common/src/cache/CacheManager.ts
+++ b/lib/msal-common/src/cache/CacheManager.ts
@@ -1033,7 +1033,7 @@ export abstract class CacheManager implements ICacheManager {
             // Get keys of all accounts belonging to user
             const matchingAccountKeys = this.getAccountKeys().filter(
                 (key: string) => {
-                    return key.startsWith(accountEntity.homeAccountId);
+                    return key.startsWith(accountEntity.homeAccountId.toLowerCase());
                 }
             );