diff --git a/lib/bcoin/http/rpc.js b/lib/bcoin/http/rpc.js
index 9cb9002f..c4665db9 100644
--- a/lib/bcoin/http/rpc.js
+++ b/lib/bcoin/http/rpc.js
@@ -1314,7 +1314,7 @@ RPC.prototype.getblocktemplate = function getblocktemplate(args, callback) {
           noncerange: '00000000ffffffff',
           sigoplimit: constants.block.MAX_SIGOPS_COST,
           sizelimit: constants.block.MAX_SIZE,
-          costlimit: constants.block.MAX_COST,
+          weightlimit: constants.block.MAX_COST,
           curtime: block.ts,
           bits: String(block.bits),
           height: attempt.height,