diff --git a/lib/bcoin/wallet.js b/lib/bcoin/wallet.js
index f027a7d1..c4b94120 100644
--- a/lib/bcoin/wallet.js
+++ b/lib/bcoin/wallet.js
@@ -573,7 +573,7 @@ Wallet.prototype.fill = function fill(tx, options, callback) {
           height: self.network.height,
           rate: options.rate != null
             ? options.rate
-            : self.network.getRate(),
+            : self.network.fees.estimateFee(),
           wallet: self,
           m: self.m,
           n: self.n