diff --git a/lib/jt9c.f90 b/lib/jt9c.f90
index f1c447128..e77045e1e 100644
--- a/lib/jt9c.f90
+++ b/lib/jt9c.f90
@@ -8,10 +8,12 @@ subroutine jt9c(ss,savg,id2,nparams0)
   character*20 datetime
   common/npar/nutc,ndiskdat,ntrperiod,nfqso,newdat,npts8,nfa,nfsplit,nfb,   &
        ntol,kin,nzhsym,nsave,nagain,ndepth,ntxmode,nmode,datetime
+  common/patience/npatience
   equivalence (nparams,nutc)
 
   nutc=id2(1)+int(savg(1))             !Silence compiler warning
   nparams=nparams0                     !Copy parameters into common/npar/
+  if(ndiskdat.ne.0) npatience=2
 
   call flush(6)
 !  if(sum(nparams).ne.0) call decoder(ss,id2,ldir)