diff --git a/macros/CCEScan/landauFit.C b/macros/CCEScan/landauFit.C
index bc6ddff..74cd18f 100644
--- a/macros/CCEScan/landauFit.C
+++ b/macros/CCEScan/landauFit.C
@@ -176,6 +176,7 @@
   TString fn_dummy(Form("%s/check",dn_output.Data()));
   
   // Name if it is not directly written into the main file
+  //If no radius is give the name for the temporary file will be e.g. temp_TT_TTaU_2606_2472_r-10_step58.root, where the r-10 comes from the fact that the defoult radius is -10
   if (temSave) {
     fn_output= TString(Form("%s/temp_%s_%s_%d_%d_r%d_step%d.root",
                             dn_output.Data(),det.Data(),lay.Data(),