diff --git a/src/ASPHERE/fix_npt_asphere.cpp b/src/ASPHERE/fix_npt_asphere.cpp
index c2d3ec97c3..5e1e96cdb2 100755
--- a/src/ASPHERE/fix_npt_asphere.cpp
+++ b/src/ASPHERE/fix_npt_asphere.cpp
@@ -181,6 +181,10 @@ void FixNPTASphere::final_integrate()
   }
   couple();
 
+  // trigger virial computation on next timestep
+
+  pressure->add_step(update->ntimestep+1);
+
   // update eta_dot
 
   f_eta = t_freq*t_freq * (t_current/t_target - 1.0);