diff --git a/Reconstruction/egamma/egammaUtils/Root/EMConversionUtils.cxx b/Reconstruction/egamma/egammaUtils/Root/EMConversionUtils.cxx
index 172b2d5777e3d25ebc3b5fb8482df7b9f80ffe81..b16a8a5fe187c717003e2419b03e7d86bb8cb952 100644
--- a/Reconstruction/egamma/egammaUtils/Root/EMConversionUtils.cxx
+++ b/Reconstruction/egamma/egammaUtils/Root/EMConversionUtils.cxx
@@ -10,9 +10,6 @@
 
 namespace EMConversionUtils {
 
-  /** @brief struct of Particle Masses */
-  const Trk::ParticleMasses particleMasses;
-
   /** @brief Get the position and momentum of the conversion candidate  */
   void getConversionPositionAndPt(const xAOD::Vertex* myCandidate, Amg::Vector3D& pos, double& pt) 
   {