diff --git a/lib/morris.bar.coffee b/lib/morris.bar.coffee
index fba8037..4f41d4f 100644
--- a/lib/morris.bar.coffee
+++ b/lib/morris.bar.coffee
@@ -211,7 +211,7 @@ class Morris.Bar extends Morris.Grid
   #
   # @private
   onGridClick: (x, y) =>
-    index = @hitTest(x)
+    index = @hitTest(x, y)
     @fire 'click', index, @data[index].src, x, y
 
   # hover movement event handler