1 files changed, 2 insertions, 1 deletions
diff --git a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Technician/TechItems/MultiGraphItem.cs b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Technician/TechItems/MultiGraphItem.cs
index 377738d09..1412175a0 100644
--- a/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Technician/TechItems/MultiGraphItem.cs
+++ b/Software/Visual_Studio/MachineStudio/Modules/Tango.MachineStudio.Technician/TechItems/MultiGraphItem.cs
@@ -1,4 +1,5 @@
 using RealTimeGraphX.DataPoints;
+using RealTimeGraphX.WPF;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -213,7 +214,7 @@ namespace Tango.MachineStudio.Technician.TechItems
         {
             if (Editor != null)
             {
-                var controller = Editor.InnerGraph.Controller;
+                var controller = Editor.InnerGraph.Controller as WpfGraphController<TimeSpanDataPoint,DoubleDataPoint>;
 
                 controller.Range.MaximumX = new TimeSpanDataPoint(TimeSpan.FromSeconds(_duration));
                 controller.Range.MinimumY = new DoubleDataPoint(_min);