diff --git a/lib/bcoin/http/rpc.js b/lib/bcoin/http/rpc.js
index eee09b8f..9a4d3e8e 100644
--- a/lib/bcoin/http/rpc.js
+++ b/lib/bcoin/http/rpc.js
@@ -2957,7 +2957,27 @@ RPC.prototype.gettransaction = function gettransaction(args, callback) {
 };
 
 RPC.prototype.abandontransaction = function abandontransaction(args, callback) {
-  callback(new Error('Not implemented.'));
+  var hash;
+
+  if (args.help || args.length !== 1)
+    return callback(new RPCError('abandontransaction "txid"'));
+
+  hash = args[0];
+
+  if (!utils.isHex(hash) || hash.length !== 64)
+    return callback(new RPCError('Invalid parameter.'));
+
+  hash = utils.revHex(hash);
+
+  this.walletdb.tx.remove(hash, function(err, result) {
+    if (err)
+      return callback(err);
+
+    if (!result)
+      return callback(new RPCError('Transaction not in wallet.'));
+
+    callback(null, null);
+  });
 };
 
 RPC.prototype.getunconfirmedbalance = function getunconfirmedbalance(args, callback) {