diff --git a/Modules/Applications/AppClassification/app/otbSampleExtraction.cxx b/Modules/Applications/AppClassification/app/otbSampleExtraction.cxx
index 7d023867b00729af376fc9f9611f1d3c3c647dfc..64bd94ae46fa3854dcb7d41af183602c93afb054 100644
--- a/Modules/Applications/AppClassification/app/otbSampleExtraction.cxx
+++ b/Modules/Applications/AppClassification/app/otbSampleExtraction.cxx
@@ -105,7 +105,8 @@ private:
     // Doc example parameter settings
     SetDocExampleParameterValue("in", "support_image.tif");
     SetDocExampleParameterValue("vec", "sample_positions.sqlite");
-    SetDocExampleParameterValue("pre","band_");
+    SetDocExampleParameterValue("outfield","prefix");
+    SetDocExampleParameterValue("outfield.prefix.name","band_");
     SetDocExampleParameterValue("field", "label");
     SetDocExampleParameterValue("out","sample_values.sqlite");
   }