diff --git a/lib/mempool/mempool.js b/lib/mempool/mempool.js
index 2e52c124..795fe155 100644
--- a/lib/mempool/mempool.js
+++ b/lib/mempool/mempool.js
@@ -118,6 +118,11 @@ Mempool.prototype._open = co(function* open() {
       entry = entries[i];
       this.trackEntry(entry);
     }
+
+    for (i = 0; i < entries.length; i++) {
+      entry = entries[i];
+      this.updateAncestors(entry);
+    }
   }
 
   this.logger.info('Mempool loaded (maxsize=%dkb).', size);
@@ -2301,7 +2306,7 @@ function MempoolCache(options) {
     this.db = LDB(options);
 }
 
-MempoolCache.VERSION = 0;
+MempoolCache.VERSION = 1;
 
 MempoolCache.prototype.getVersion = co(function* getVersion() {
   var data = yield this.db.get(layout.V);
diff --git a/lib/mempool/mempoolentry.js b/lib/mempool/mempoolentry.js
index 2a6d290f..4a53086f 100644
--- a/lib/mempool/mempoolentry.js
+++ b/lib/mempool/mempoolentry.js
@@ -195,7 +195,7 @@ MempoolEntry.prototype.isFree = function isFree(height) {
  */
 
 MempoolEntry.prototype.getSize = function getSize() {
-  return this.tx.getSize() + 53;
+  return this.tx.getSize() + 41;
 };
 
 /**
@@ -214,8 +214,6 @@ MempoolEntry.prototype.toRaw = function toRaw() {
   bw.writeU32(this.ts);
   bw.writeU64(this.value);
   bw.writeU8(this.dependencies ? 1 : 0);
-  bw.writeU64(this.descFee);
-  bw.writeU32(this.descSize);
   return bw.render();
 };
 
@@ -237,8 +235,8 @@ MempoolEntry.prototype.fromRaw = function fromRaw(data) {
   this.ts = br.readU32();
   this.value = br.readU64();
   this.dependencies = br.readU8() === 1;
-  this.descFee = br.readU64();
-  this.descSize = br.readU32();
+  this.descFee = this.fee;
+  this.descSize = this.size;
   return this;
 };