diff --git a/lib/jt9.f90 b/lib/jt9.f90
index 68984e33a..67e7ac319 100644
--- a/lib/jt9.f90
+++ b/lib/jt9.f90
@@ -226,7 +226,7 @@ program jt9
      endif
 
      shared_data%id2=0          !??? Why is this necessary ???
-     if(mode.eq.5) npts=62208
+     if(mode.eq.5) npts=21*3456
      do iblk=1,npts/kstep
         k=iblk*kstep
         if(mode.eq.8 .and. k.gt.179712) exit