diff --git a/core/src/test/java/com/google/bitcoin/core/WalletTest.java b/core/src/test/java/com/google/bitcoin/core/WalletTest.java
index f1da6311d90..907d72b37e0 100644
--- a/core/src/test/java/com/google/bitcoin/core/WalletTest.java
+++ b/core/src/test/java/com/google/bitcoin/core/WalletTest.java
@@ -2352,6 +2352,7 @@ public void keyRotationRandom() throws Exception {
     public void keyRotationHD() throws Exception {
         // Test that if we rotate an HD chain, a new one is created and all arrivals on the old keys are moved.
         Utils.setMockClock();
+        wallet = new Wallet(params);
         ECKey key1 = wallet.freshReceiveKey();
         ECKey key2 = wallet.freshReceiveKey();
         sendMoneyToWallet(wallet, CENT, key1.toAddress(params), AbstractBlockChain.NewBlockType.BEST_CHAIN);