diff --git a/Grid/qcd/hmc/HMC.h b/Grid/qcd/hmc/HMC.h
index 44674ea5..b05e0561 100644
--- a/Grid/qcd/hmc/HMC.h
+++ b/Grid/qcd/hmc/HMC.h
@@ -34,6 +34,7 @@ directory
 			    * @brief Classes for Hybrid Monte Carlo update
 			    *
 			    * @author Guido Cossu
+			    * @author Peter Boyle
 			    */
 			   //--------------------------------------------------------------------
 #pragma once