diff --git a/Modules/Applications/AppClassification/include/otbTrainImagesBase.txx b/Modules/Applications/AppClassification/include/otbTrainImagesBase.txx
index 325d3b9c38b658755999af8d7626293f571e22c8..a646cea9539fc3c8b6dcc5f013a6996ed7bf2a9d 100644
--- a/Modules/Applications/AppClassification/include/otbTrainImagesBase.txx
+++ b/Modules/Applications/AppClassification/include/otbTrainImagesBase.txx
@@ -128,7 +128,7 @@ void TrainImagesBase::InitClassification()
   AddApplication( "TrainVectorClassifier", "training", "Model training" );
 
   AddParameter( ParameterType_InputVectorDataList, "io.valid", "Validation Vector Data List" );
-  SetParameterDescription( "io.valid", "A list of vector data to select the training samples." );
+  SetParameterDescription( "io.valid", "A list of vector data to select the validation samples." );
   MandatoryOff( "io.valid" );
 
   ShareClassificationParams();