diff --git a/lib/blockchain/chaindb.js b/lib/blockchain/chaindb.js
index 02a2af98..525fce08 100644
--- a/lib/blockchain/chaindb.js
+++ b/lib/blockchain/chaindb.js
@@ -748,6 +748,8 @@ ChainDB.prototype.prune = co(function* prune(tip) {
     throw e;
   }
 
+  yield this.db.compactRange();
+
   return true;
 });
 
diff --git a/lib/db/lowlevelup.js b/lib/db/lowlevelup.js
index 1ecfa89d..d750e480 100644
--- a/lib/db/lowlevelup.js
+++ b/lib/db/lowlevelup.js
@@ -401,14 +401,20 @@ LowlevelUp.prototype.approximateSize = function approximateSize(start, end) {
 
 /**
  * Compact range of keys.
- * @param {String|Buffer} start - Start key.
- * @param {String|Buffer} end - End key.
+ * @param {String|Buffer|null} start - Start key.
+ * @param {String|Buffer|null} end - End key.
  * @returns {Promise}
  */
 
 LowlevelUp.prototype.compactRange = function compactRange(start, end) {
   var self = this;
 
+  if (!start)
+    start = new Buffer([0x00]);
+
+  if (!end)
+    end = new Buffer([0xff]);
+
   return new Promise(function(resolve, reject) {
     if (!self.loaded) {
       reject(new Error('Database is closed.'));
@@ -416,7 +422,7 @@ LowlevelUp.prototype.compactRange = function compactRange(start, end) {
     }
 
     if (!self.binding.compactRange) {
-      reject(new Error('Cannot compact range.'));
+      resolve();
       return;
     }