diff --git a/Calo/CaloTools/src/CaloHypoEstimator.cpp b/Calo/CaloTools/src/CaloHypoEstimator.cpp
index 2e3092e23ebf70c82f9368617ecf79287e3c6b63..ba383fb76167aa51870b1bc2b184f0a0af21d9e5 100644
--- a/Calo/CaloTools/src/CaloHypoEstimator.cpp
+++ b/Calo/CaloTools/src/CaloHypoEstimator.cpp
@@ -319,7 +319,7 @@ bool CaloHypoEstimator::estimator(const LHCb::CaloHypo* hypo){
     
   // gamma/pi0 separation
   m_data[isPhoton]= m_GammaPi0->isPhoton( hypo );
-  m_data[isPhotonXGBoost] = m_GammaPi0XGB->isPhoton( hypo );
+  m_data[isPhotonXGB] = m_GammaPi0XGB->isPhoton( hypo );
 
   // 1- Ecal variables :
   std::map<std::string,double> isPhotonData = m_GammaPi0->inputDataMap();