1 files changed, 11 insertions, 10 deletions
diff --git a/lib/completion.js b/lib/completion.js
index e8365b9c..7e4bcf57 100644
--- a/lib/completion.js
+++ b/lib/completion.js
@@ -2,14 +2,15 @@ var completion = (function() {
 
   /** Helper class to construct fuzzy completers for asynchronous data sources like history or bookmark
    * matchers. */
-  var AsyncCompletionSource = function() {
-    this.id = utils.createUniqueId();
-    this.reset();
-    this.resultsReady = this.fallbackReadyCallback = function(results) {
-      this.completions = results;
-    }
-  }
-  AsyncCompletionSource.prototype = {
+  var AsyncCompletionSource = Class.extend({
+    init: function() {
+      this.id = utils.createUniqueId();
+      this.reset();
+      this.resultsReady = this.fallbackReadyCallback = function(results) {
+        this.completions = results;
+      }
+    },
+
     reset: function() {
       fuzzyMatcher.invalidateFilterCache(this.id);
       this.completions = null;
@@ -64,8 +65,8 @@ var completion = (function() {
           self.resultsReady(results);
         }
       }
-    },
-  }
+    }
+  });
 
   /** A simple completer that suggests to open the input string as an URL or to trigger a web search for the
    * given term, depending on whether it thinks the input is a URL or not. */