diff --git a/NEWS.txt b/NEWS.txt
index 106990b..9d181f0 100644
--- a/NEWS.txt
+++ b/NEWS.txt
@@ -102,6 +102,8 @@ Bug fixes:
   arrays, patch by vpapp1).
 - Fix errors in JSON in examples so they work with jQuery 1.4.2
   (fix reported by honestbleeps, issue 357).
+- Fix bug with tooltip in interacting.html, this makes the tooltip
+  much smoother (fix by bdkahn).
 
 
 Flot 0.6
diff --git a/examples/interacting.html b/examples/interacting.html
index fbf0390..dd8e6c6 100644
--- a/examples/interacting.html
+++ b/examples/interacting.html
@@ -62,8 +62,8 @@ $(function () {
 
         if ($("#enableTooltip:checked").length > 0) {
             if (item) {
-                if (previousPoint != item.datapoint) {
-                    previousPoint = item.datapoint;
+                if (previousPoint != item.dataIndex) {
+                    previousPoint = item.dataIndex;
                     
                     $("#tooltip").remove();
                     var x = item.datapoint[0].toFixed(2),