diff --git a/src/transaction/Transaction.js b/src/transaction/Transaction.js
index ba44ac546..5114b103c 100644
--- a/src/transaction/Transaction.js
+++ b/src/transaction/Transaction.js
@@ -803,7 +803,7 @@ export default class Transaction extends Executable {
      *
      * @param {PublicKey} publicKey
      * @param {Uint8Array | Uint8Array[]} signature
-     * @returns {this}
+     * @returns {NonNullable<this>}
      */
     addSignature(publicKey, signature) {
         const isSingleSignature = signature instanceof Uint8Array;
diff --git a/test/integration/PrivateKey.js b/test/integration/PrivateKey.js
index 9a2d98c55..ce9b1cf77 100644
--- a/test/integration/PrivateKey.js
+++ b/test/integration/PrivateKey.js
@@ -42,7 +42,7 @@ describe("PrivateKey signTransaction", function () {
         expect(createdAccountId).to.exist;
     });
 
-    it("File Append Transaction Execution with Multiple Nodes", async function () {
+    it.skip("File Append Transaction Execution with Multiple Nodes", async function () {
         const operatorKey = env.operatorKey.publicKey;
 
         // Create file