diff --git a/Modules/Applications/AppClassification/include/otbLearningApplicationBase.txx b/Modules/Applications/AppClassification/include/otbLearningApplicationBase.txx
index 3933451c50bfca7aef5424e0082982f2effae18c..511f94fb6ccd5b59191eb4f99c88eab6e8b6444c 100644
--- a/Modules/Applications/AppClassification/include/otbLearningApplicationBase.txx
+++ b/Modules/Applications/AppClassification/include/otbLearningApplicationBase.txx
@@ -55,10 +55,6 @@ LearningApplicationBase<TInputValue,TOutputValue>
   AddParameter(ParameterType_Choice, "classifier", "Classifier to use for the training");
   SetParameterDescription("classifier", "Choice of the classifier to use for the training.");
 
-  AddParameter(ParameterType_Choice, "category", "Type of classifier use for the training (supervised or unsupervised");
-  SetParameterDescription("category", "Choice of the classifier type to use for the training, "
-          "choice is supervised or unsupervised.");
-
   InitSupervisedClassifierParams();
   m_SupervisedClassifier = GetChoiceKeys("classifier");