diff --git a/lib/bcoin/chain.js b/lib/bcoin/chain.js
index ed3bbd36..ca2c82a4 100644
--- a/lib/bcoin/chain.js
+++ b/lib/bcoin/chain.js
@@ -742,7 +742,12 @@ ChainDB.prototype._init = function _init() {
 
   this.size = this.getSize();
 
-  assert(this.size % BLOCK_SIZE === 0);
+  if (this.size % BLOCK_SIZE !== 0) {
+    utils.debug('Blockchain is at an odd length. Truncating.');
+    fs.truncateSync(this.file, this.size - (this.size % BLOCK_SIZE));
+    this.size = this.getSize();
+    assert(this.size % BLOCK_SIZE === 0);
+  }
 
   this.fd = fs.openSync(this.file, 'r+');
 };