diff --git a/lib/ace/editor.js b/lib/ace/editor.js
index 826fdd4c..aadae77f 100644
--- a/lib/ace/editor.js
+++ b/lib/ace/editor.js
@@ -818,12 +818,14 @@ var Editor =function(renderer, session) {
 
     this.navigateUp = function(times) {
         this.selection.clearSelection();
-        this.selection.moveCursorBy(-1, 0);
+        times = times || 1;
+        this.selection.moveCursorBy(-times, 0);
     };
 
     this.navigateDown = function(times) {
         this.selection.clearSelection();
-        this.selection.moveCursorBy(1, 0);
+        times = times || 1;
+        this.selection.moveCursorBy(times, 0);
     };
 
     this.navigateLeft = function(times) {