diff --git a/src/vs/base/common/idGenerator.ts b/src/vs/base/common/idGenerator.ts
index 1ff53213a2..290027d8ef 100644
--- a/src/vs/base/common/idGenerator.ts
+++ b/src/vs/base/common/idGenerator.ts
@@ -14,7 +14,7 @@ export class IdGenerator {
 	}
 
 	public nextId(): string {
-		return this._prefix + (++this._lastId);
+		return this._prefix + (++this._lastId) + '-id';
 	}
 }