diff --git a/lib/bcoin/protocol/framer.js b/lib/bcoin/protocol/framer.js
index 8acafddc..c183f2f1 100644
--- a/lib/bcoin/protocol/framer.js
+++ b/lib/bcoin/protocol/framer.js
@@ -260,12 +260,12 @@ Framer.block = function _block(block, type) {
   off += writeU32(p, constants.version, off);
 
   // prev_block
-  util.toArray(block.prevBlock, 'hex').forEach(function(ch) {
+  utils.toArray(block.prevBlock, 'hex').forEach(function(ch) {
     p[off++] = ch;
   });
 
   // merkle_root
-  util.toArray(block.merkleRoot, 'hex').forEach(function(ch) {
+  utils.toArray(block.merkleRoot, 'hex').forEach(function(ch) {
     p[off++] = ch;
   });