diff --git a/lib/node/rpc.js b/lib/node/rpc.js
index 7974de14..500de8cd 100644
--- a/lib/node/rpc.js
+++ b/lib/node/rpc.js
@@ -2212,15 +2212,16 @@ class RPC extends RPCBase {
     const ns = await this.chain.db.getNameState(nameHash);
 
     if (!ns || !ns.owner)
-      throw new RPCError(errs.TYPE_ERROR, 'Cannot find the name owner.');
+      throw new RPCError(errs.MISC_ERROR, 'Cannot find the name owner.');
 
     const coin = await this.chain.getCoin(ns.owner.hash, ns.owner.index);
 
-    if (!coin)
+    if (!coin) {
       throw new RPCError(
-        errs.INVALID_ADDRESS_OR_KEY,
+        errs.DATABASE_ERROR,
         'Cannot find the owner\'s address.'
       );
+    }
 
     const address = coin.address.toString(this.network);
     return this.verifyMessage([address, sig, str], help);
diff --git a/lib/wallet/rpc.js b/lib/wallet/rpc.js
index 6d792606..a142fa21 100644
--- a/lib/wallet/rpc.js
+++ b/lib/wallet/rpc.js
@@ -1606,15 +1606,16 @@ class RPC extends RPCBase {
 
     const ns = await wallet.getNameStateByName(name);
     if (!ns || !ns.owner)
-      throw new RPCError(errs.TYPE_ERROR, 'Cannot find the name owner.');
+      throw new RPCError(errs.MISC_ERROR, 'Cannot find the name owner.');
 
     const coin = await wallet.getCoin(ns.owner.hash, ns.owner.index);
 
-    if (!coin)
+    if (!coin) {
       throw new RPCError(
-        errs.INVALID_ADDRESS_OR_KEY,
+        errs.DATABASE_ERROR,
         'Cannot find the owner\'s address.'
       );
+    }
 
     const address = coin.address.toString(this.network);
     return this.signMessage([address, str], help);