diff --git a/Code/Mantid/Framework/MDAlgorithms/inc/MantidMDAlgorithms/Quantification/Resolution/TobyFitResolutionModel.h b/Code/Mantid/Framework/MDAlgorithms/inc/MantidMDAlgorithms/Quantification/Resolution/TobyFitResolutionModel.h
index 6b92cd6ccdfc1a0225085a3f1a9e1ef08e91f191..d33e03f2f177d60247acc2014502195f56dd356f 100644
--- a/Code/Mantid/Framework/MDAlgorithms/inc/MantidMDAlgorithms/Quantification/Resolution/TobyFitResolutionModel.h
+++ b/Code/Mantid/Framework/MDAlgorithms/inc/MantidMDAlgorithms/Quantification/Resolution/TobyFitResolutionModel.h
@@ -134,8 +134,6 @@ namespace Mantid
 
       /// Storage for currently in use random number generators
       mutable std::vector<Kernel::NDRandomNumberGenerator*> m_randomNumbers;
-      /// The value to mark an attribute as active
-      int m_activeAttrValue;
       /// Check for convergence after loop min number of steps
       int m_mcLoopMin;
       /// Maximum number of Monte Carlo evaluations