diff --git a/src/traceView/branch-navigator.js b/src/traceView/branch-navigator.js
index 6b55b659..7283847b 100644
--- a/src/traceView/branch-navigator.js
+++ b/src/traceView/branch-navigator.js
@@ -181,6 +181,25 @@ export class BranchNavigator {
 
 
     function update$GraphTooltip($gutterTooltip, mousePositionX, mousePositionY, visualization) {
+
+
+      let branchModel = this.traceViewModel.branchModel;
+
+
+      let row = // you need to look in the node's data for the row the code belongs. Take a look of the highlighting logic to see how is done.
+        let
+      rowData = null;
+      if (dataModel.rows.hasOwnProperty(row)) {
+        rowData = dataModel.rows[row];
+        let pixelPosition = {};
+        pixelPosition.pageY = mousePositionY;     //mousePositionY is set in the call-graph.js class
+        pixelPosition.pageX = mousepositionX;     //mousePositionX is set in the call-graph.js class
+
+        setTooltipMouseMove(target, row, pixelPosition, rowData);
+
+      }
+
+
       if (!$gutterTooltip) {
         return;
       }