diff --git a/src/SHOCK/fix_msst.cpp b/src/SHOCK/fix_msst.cpp
index 6399b10fa20b6a0f408b35379982d0930f9413bf..e14660d9b84f90942633aa467d8abbdbdbe8de5d 100644
--- a/src/SHOCK/fix_msst.cpp
+++ b/src/SHOCK/fix_msst.cpp
@@ -434,6 +434,7 @@ void FixMSST::setup(int vflag)
 
   // trigger virial computation on next timestep
 
+  pe->addstep(update->ntimestep+1);
   pressure->addstep(update->ntimestep+1);
 }