diff --git a/Modules/Applications/AppHyperspectral/app/otbEndmemberNumberEstimation.cxx b/Modules/Applications/AppHyperspectral/app/otbEndmemberNumberEstimation.cxx
index 562812a4e8f7f54941f351b21bee487802f65c96..6b5781f77cd05661190d1199a78da28ce6bf1419 100644
--- a/Modules/Applications/AppHyperspectral/app/otbEndmemberNumberEstimation.cxx
+++ b/Modules/Applications/AppHyperspectral/app/otbEndmemberNumberEstimation.cxx
@@ -106,6 +106,8 @@ private:
     SetParameterDescription("number", "Estimated number of endmembers");
     SetParameterRole("number", Role_Output);
 
+    AddRAMParameter();
+    
     // Doc example parameter settings
     SetDocExampleParameterValue("in", "cupriteSubHsi.tif");
     SetDocExampleParameterValue("algo", "vd");