diff --git a/extensions/microsoft-authentication/src/AADHelper.ts b/extensions/microsoft-authentication/src/AADHelper.ts
index 9722145dd03..ad8dabe7533 100644
--- a/extensions/microsoft-authentication/src/AADHelper.ts
+++ b/extensions/microsoft-authentication/src/AADHelper.ts
@@ -551,7 +551,7 @@ export class AzureActiveDirectoryService {
 			throw e;
 		}
 
-		const id = `${claims.tid}/${(claims.oid ?? (claims.altsecid ?? '' + claims.ipd ?? ''))}`;
+		const id = `${claims.tid}/${(claims.oid ?? (claims.altsecid ?? '' + claims.ipd))}`;
 		const sessionId = existingId || `${id}/${randomUUID()}`;
 		this._logger.trace(`[${scopeData.scopeStr}] '${sessionId}' Token response parsed successfully.`);
 		return {