diff --git a/NPLib/Detectors/PISTA/TTimeData.cxx b/NPLib/Detectors/PISTA/TTimeData.cxx
index 8334473afbe12a3e0213676d1b02e3a0a0769e22..0ceb7608ec545e1859a83bdfe4d90b062644b272 100644
--- a/NPLib/Detectors/PISTA/TTimeData.cxx
+++ b/NPLib/Detectors/PISTA/TTimeData.cxx
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*****************************************************************************
- * Original Author: Théodore Efremov  contact address: theodore.efremov@cea.fr
+ * Original Author: Théodore Efremov contact address: theodore.efremov@cea.fr*
  *                                                                           *
  * Creation Date  : Nov 2024                                                 *
  * Last update    :                                                          *
diff --git a/NPLib/Detectors/PISTA/TTimeData.h b/NPLib/Detectors/PISTA/TTimeData.h
index 0ce7b2d65c30cb63bbd68fe6ac9e9b1a67cbae6e..2d036067cba9fca09e7d971c3933f5f42d82ddb9 100644
--- a/NPLib/Detectors/PISTA/TTimeData.h
+++ b/NPLib/Detectors/PISTA/TTimeData.h
@@ -101,8 +101,15 @@ class TTimeData : public TObject {
         inline float GetTime_MWPC24(const unsigned int &i) const
         {return fTime_MWPC24.at(i) ;}//!
          
-        inline UShort_t GetMWPCMult() const
-        {return fTS_MWPC13.size();}
+        inline Int_t GetMWPC13Mult() const
+        {return static_cast<int>(fTime_MWPC13.size());}         
+        inline Int_t GetMWPC14Mult() const
+        {return static_cast<int>(fTime_MWPC14.size());}        
+        inline Int_t GetMWPC23Mult() const
+        {return static_cast<int>(fTime_MWPC23.size());}        
+        inline Int_t GetMWPC24Mult() const
+        {return static_cast<int>(fTime_MWPC24.size());}
+
         //////////////////////////////////////////////////////////////
         // Required for ROOT dictionnary
         ClassDef(TTimeData,1)  // TimeData structure