diff --git a/Modules/Applications/AppClassification/include/otbVectorPrediction.h b/Modules/Applications/AppClassification/include/otbVectorPrediction.h
index 7441863f7b632f85f57f8b3da7c015b99477ab93..8dd7004c4b4018a47812631f7a088f30106d37a5 100644
--- a/Modules/Applications/AppClassification/include/otbVectorPrediction.h
+++ b/Modules/Applications/AppClassification/include/otbVectorPrediction.h
@@ -109,7 +109,7 @@ private:
                                                              ogr::DataSource::Pointer buffer);
 
   /** Create the output DataSource. */
-  otb::ogr::DataSource::Pointer CreateOutputDataSource(ogr::DataSource::Pointer source, ogr::Layer& layer);
+  otb::ogr::DataSource::Pointer CreateOutputDataSource(ogr::Layer& layer);
 
   /** Add a prediction field in the output layer if it does not exist.
    * If computeConfidenceMap evaluates to true a confidence field will be
diff --git a/Modules/Applications/AppClassification/include/otbVectorPrediction.hxx b/Modules/Applications/AppClassification/include/otbVectorPrediction.hxx
index 30067a636241b981e2b1d1b1cb4877e911c95d41..7d6a64d2a76266aed889e3d386b4aba4179ef140 100644
--- a/Modules/Applications/AppClassification/include/otbVectorPrediction.hxx
+++ b/Modules/Applications/AppClassification/include/otbVectorPrediction.hxx
@@ -164,7 +164,7 @@ otb::ogr::DataSource::Pointer VectorPrediction<RegressionMode>::ReopenDataSource
 }
 
 template <bool                RegressionMode>
-otb::ogr::DataSource::Pointer VectorPrediction<RegressionMode>::CreateOutputDataSource(ogr::DataSource::Pointer /*source*/, ogr::Layer& layer)
+otb::ogr::DataSource::Pointer VectorPrediction<RegressionMode>::CreateOutputDataSource(ogr::Layer& layer)
 {
   ogr::DataSource::Pointer output;
   // Create new OGRDataSource
@@ -316,7 +316,7 @@ void           VectorPrediction<RegressionMode>::DoExecute()
   }
   else
   {
-    output = CreateOutputDataSource(source, layer);
+    output = CreateOutputDataSource(layer);
   }
 
   otb::ogr::Layer outLayer = output->GetLayer(0);