diff --git a/macros/CCEScan/voltageFit_spline.C b/macros/CCEScan/voltageFit_spline.C
index 726ccaa..40a2293 100755
--- a/macros/CCEScan/voltageFit_spline.C
+++ b/macros/CCEScan/voltageFit_spline.C
@@ -518,7 +518,7 @@
   TF1* fu_lin = new TF1("f_lin","[0]*x",-100,800);
   fu_lin->SetParameter(0,s5_volt->Derivative(0.0));
   fu_lin->SetLineStyle(2);
-  //fu_lin->DrawCopy("Same");
+  fu_lin->DrawCopy("Same");
   
   fu_volt->SetLineColor(kBlack);
   fu_volt->SetLineStyle(2);