diff --git a/NPLib/Tigress/TTigressData.h b/NPLib/Tigress/TTigressData.h
index 15fbdaa0add9561436a56557a8f9e5a13447f9a6..c01dd27e893fa5fed6f2fad6389082150f9d8bf8 100644
--- a/NPLib/Tigress/TTigressData.h
+++ b/NPLib/Tigress/TTigressData.h
@@ -100,7 +100,7 @@ public: // Method and object to construct to fill the data event from a Tigress
   void FillGe(unsigned short GeCloverNbr, unsigned short GeCrystalNbr , unsigned short GeSegmentNbr, int hit,TTigEventFragment* TigEvent);
   void FillBGO(unsigned short BGOCloverNbr, unsigned short BGOPmNbr , unsigned short BGOSegmentNbr, int hit,TTigEventFragment* TigEvent);
 
-  map< int,vector<int> > GetFSPC2Detector() const ;//!
+  map< int,vector<int> > GetFSPC2Detector() const {return m_FSPC2Detector;}//!
   
 private:// Key is the FSPC channel,
         // vector[0] is the Clover Nbr