diff --git a/votingpool/factory_test.go b/votingpool/factory_test.go
index 754cef7..e1e4c40 100644
--- a/votingpool/factory_test.go
+++ b/votingpool/factory_test.go
@@ -185,7 +185,7 @@ func TstCreateSeries(t *testing.T, pool *Pool, definitions []TstSeriesDef) {
 }
 
 func TstCreateMasterKey(t *testing.T, seed []byte) *hdkeychain.ExtendedKey {
-	key, err := hdkeychain.NewMaster(seed)
+	key, err := hdkeychain.NewMaster(seed, &chaincfg.MainNetParams)
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/waddrmgr/db.go b/waddrmgr/db.go
index 4eaa3aa..366c4d9 100644
--- a/waddrmgr/db.go
+++ b/waddrmgr/db.go
@@ -1767,7 +1767,7 @@ func upgradeToVersion3(namespace walletdb.Namespace, seed, privPassPhrase, pubPa
 		}
 
 		// Derive the master extended key from the seed.
-		root, err := hdkeychain.NewMaster(seed)
+		root, err := hdkeychain.NewMaster(seed, chainParams)
 		if err != nil {
 			str := "failed to derive master extended key"
 			return managerError(ErrKeyChain, str, err)
diff --git a/waddrmgr/manager.go b/waddrmgr/manager.go
index ca6f9c5..d29346b 100644
--- a/waddrmgr/manager.go
+++ b/waddrmgr/manager.go
@@ -2245,7 +2245,7 @@ func Create(namespace walletdb.Namespace, seed, pubPassphrase, privPassphrase []
 	// can generate the required structure with no issues.
 
 	// Derive the master extended key from the seed.
-	root, err := hdkeychain.NewMaster(seed)
+	root, err := hdkeychain.NewMaster(seed, chainParams)
 	if err != nil {
 		str := "failed to derive master extended key"
 		return nil, managerError(ErrKeyChain, str, err)