diff --git a/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHeadTestCtrl.cs b/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHeadTestCtrl.cs
index 1a49c5677..dfaa71741 100644
--- a/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHeadTestCtrl.cs
+++ b/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHeadTestCtrl.cs
@@ -3,6 +3,7 @@ using System.Threading;
 using System.Web.UI.WebControls;
 using System.Windows.Forms;
 using TBF.Rig.Sequences;
+using TBF.Rig.TestMethods.iPerlCommunication.communication;
 
 namespace TBF.Rig.TestMethods.iPerlCommunication.iPerlHead
 {
@@ -81,10 +82,10 @@ namespace TBF.Rig.TestMethods.iPerlCommunication.iPerlHead
                 switch (rfidCommandComboBox.SelectedValue)
                 {
                     case "ReadPCB":
-                        rfidListItem.Text = $"PCB: {OpticalHeadTest.ReadRequest_PCB(iPerlHead)}";
+                        rfidListItem.Text = $"PCB: {OptoHeadTest.ReadRequest_PCB(iPerlHead)}";
                         break;
                     case "SetTestMode":
-                        rfidListItem.Text = OpticalHeadTest.SetTestMode(iPerlHead);
+                        rfidListItem.Text = OptoHeadTest.SetTestMode(iPerlHead);
                         optoListBox.Items.Clear();
                         stopWorkerThread = false;
                         optoThread = new Thread(OptoWorker);
@@ -95,7 +96,7 @@ namespace TBF.Rig.TestMethods.iPerlCommunication.iPerlHead
                         }
                         break;
                     case "SetActiveMode":
-                        rfidListItem.Text = OpticalHeadTest.SetActiveMode(iPerlHead);
+                        rfidListItem.Text = OptoHeadTest.SetActiveMode(iPerlHead);
                         stopWorkerThread = true;
                         iPerlHead.StopDataStreamProcessing(); // close opto port
                         break;
diff --git a/TBFTests/obj/Debug/TBFTests.csproj.AssemblyReference.cache b/TBFTests/obj/Debug/TBFTests.csproj.AssemblyReference.cache
index ef0532731..475082876 100644
Binary files a/TBFTests/obj/Debug/TBFTests.csproj.AssemblyReference.cache and b/TBFTests/obj/Debug/TBFTests.csproj.AssemblyReference.cache differ