diff --git a/MuonSpectrometer/MuonDigitization/MM_Digitization/MM_Digitization/VMM_Shaper.h b/MuonSpectrometer/MuonDigitization/MM_Digitization/MM_Digitization/VMM_Shaper.h
index 8b4a6672c970cd217a60e7c777af46e2e8acea9b..cffadb2a057b855f366f4979301d2c192ef81a8c 100644
--- a/MuonSpectrometer/MuonDigitization/MM_Digitization/MM_Digitization/VMM_Shaper.h
+++ b/MuonSpectrometer/MuonDigitization/MM_Digitization/MM_Digitization/VMM_Shaper.h
@@ -30,8 +30,6 @@ class VMM_Shaper{
      double m_preCalculationVMMShaper; 
      // shaper parameters
      double m_a, m_pole0, m_re_pole1, m_im_pole1, m_pole1_square, m_k1_abs, m_argK1;
-     int m_nBins;
-
      double m_peakTimeChargeScaling;
 
      double vmmResponse(const std::vector<float> &effectiveCharge, const std::vector<float> &electronsTime, double time) const;