diff --git a/Modules/Applications/AppClassification/app/otbTrainImagesRegression.cxx b/Modules/Applications/AppClassification/app/otbTrainImagesRegression.cxx
index 40cb7be9545c9cf21e2a718b4c84fc1481e08a37..123ac5c1ae25bad9516e45a1bbf461c755d5724b 100644
--- a/Modules/Applications/AppClassification/app/otbTrainImagesRegression.cxx
+++ b/Modules/Applications/AppClassification/app/otbTrainImagesRegression.cxx
@@ -158,7 +158,7 @@ protected:
     {
       samplingRateAppli->SetParameterString("strategy", "constant");
       
-      // TODO why nb is a string in MultiImageSamplingRate + MultiImageSamplingRate seems to return nb-1 samples ...
+      // Convert the integer number to string for the MultiImageSamplingRate application
       samplingRateAppli->SetParameterString("strategy.constant.nb", std::to_string(GetParameterInt("sample.nt")));
     }
     else