1 files changed, 14 insertions, 14 deletions
diff --git a/lib/completion.js b/lib/completion.js
index 13be5551..103131dd 100644
--- a/lib/completion.js
+++ b/lib/completion.js
@@ -140,22 +140,22 @@ var completion = (function() {
   });
 
   /** A fuzzy history completer */
-  var FuzzyHistoryCompletionSource = function(maxResults) {
-    AsyncCompletionSource.call(this);
-    this.maxResults = maxResults;
-  }
-  utils.extend(AsyncCompletionSource, FuzzyHistoryCompletionSource);
+  var FuzzyHistoryCompletionSource = AsyncCompletionSource.extend({
+    init: function(maxResults) {
+      this._super();
+      this.maxResults = maxResults;
+    },
 
-  FuzzyHistoryCompletionSource.prototype.refresh = function() {
-    var self = this;
-    self.reset();
+    refresh: function() {
+      this.reset();
 
-    historyCache.use(function(history) {
-      self.resultsReady(history.slice(-self.maxResults).map(function(item) {
-        return self.createInternalMatch('history', item);
-      }))
-    });
-  }
+      historyCache.use(function(history) {
+        this.resultsReady(history.slice(-this.maxResults).map(function(item) {
+          return this.createInternalMatch("history", item);
+        }.proxy(this)));
+      }.proxy(this));
+    }
+  });
 
   /** A fuzzy tab completer */
   var FuzzyTabCompletionSource = function() {