diff --git a/README.md b/README.md
index 56baa441c997d68b0c64215314e24c1e637dde55..1edc70b6bcb5f55409a64293cad3953110d2c389 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@ Standalone Fortran WENO code with Loopy transformations.
 
 1. The WENO scheme is taken from [1].
 2. Boundary conditions are not really handled correctly at all.
+3. For now, the Fortran code will not compile -- the main focus is expressing
+   the mathematics
 
 ## References
 
diff --git a/WENO.f90 b/WENO.f90
index e41f1453f3f0cfcbc5caaab6f721fa262d93a7e1..e09cb97d38c2bead96814cb17e963d70b9d30a14 100644
--- a/WENO.f90
+++ b/WENO.f90
@@ -29,8 +29,8 @@ subroutine compute_flux_derivatives(states, fluxes, flux_derivatives)
   end do
 
   ! two more loops:
-  !   j is inner index, filling flux_derivatives_generalized(2,:,:,:)
-  !   k is inner index, filling flux_derivatives_generalized(3,:,:,:)
+  !   j is inner index, filling flux_derivatives_generalized(2,:,:,:), using delta_eta
+  !   k is inner index, filling flux_derivatives_generalized(3,:,:,:), using delta_zeta
 
   call convert_from_generalized(flux_derivatives_generalized,
                                 metrics,