diff --git a/src/io/io.f90 b/src/io/io.f90
index e7c1c4a68..097c6eb5a 100644
--- a/src/io/io.f90
+++ b/src/io/io.f90
@@ -862,7 +862,7 @@ module subroutine io_read_cb_in(self, param)
       is_ascii = (param%in_type == 'ASCII') 
       if (is_ascii) then
          open(unit = iu, file = param%incbfile, status = 'old', form = 'FORMATTED', iostat = ierr)
-         !read(iu, *, iostat = ierr) self%id
+         read(iu, *, iostat = ierr) self%id
          read(iu, *, iostat = ierr) val 
          self%Gmass = real(val, kind=DP)
          self%mass = real(val / param%GU, kind=DP)