diff --git a/docs/source/input.rst b/docs/source/input.rst
index de5e3b9e..9e329344 100644
--- a/docs/source/input.rst
+++ b/docs/source/input.rst
@@ -915,18 +915,20 @@ Allows you (advanced) control of the parameters that are used to build each orde
 
     #pml_cfs: str1 str2 f1 f2 str3 str4 f3 f4 str5 str6 f5 f6
 
-* ``str1`` is the type of scaling to use for the CFS :math:`\alpha` parameter. It can be ``constant``, ``linear``, ``quadratic``, ``cubic``, ``quartic``, ``quintic``and ``sextic``.
+* ``str1`` is the type of scaling to use for the CFS :math:`\alpha` parameter. It can be ``constant``, ``linear``, ``quadratic``, ``cubic``, ``quartic``, ``quintic`` and ``sextic``.
 * ``str2`` is the direction of the scaling to use for the CFS :math:`\alpha` parameter. It can be ``forward`` or ``reverse``.
 * ``f1 f2`` are the minimum and maximum values for the CFS :math:`\alpha` parameter.
-* ``str3`` is the type of scaling to use for the CFS :math:`\kappa` parameter. It can be ``constant``, ``linear``, ``quadratic``, ``cubic``, ``quartic``, ``quintic``and ``sextic``.
+* ``str3`` is the type of scaling to use for the CFS :math:`\kappa` parameter. It can be ``constant``, ``linear``, ``quadratic``, ``cubic``, ``quartic``, ``quintic`` and ``sextic``.
 * ``str4`` is the direction of the scaling to use for the CFS :math:`\kappa` parameter. It can be ``forward`` or ``reverse``.
 * ``f3 f4`` are the minimum and maximum values for the CFS :math:`\kappa` parameter. The minimum value for the CFS :math:`\kappa` parameter is one.
-* ``str5`` is the type of scaling to use for the CFS :math:`\sigma` parameter. It can be ``constant``, ``linear``, ``quadratic``, ``cubic``, ``quartic``, ``quintic``and ``sextic``.
+* ``str5`` is the type of scaling to use for the CFS :math:`\sigma` parameter. It can be ``constant``, ``linear``, ``quadratic``, ``cubic``, ``quartic``, ``quintic`` and ``sextic``.
 * ``str6`` is the direction of the scaling to use for the CFS :math:`\sigma` parameter. It can be ``forward`` or ``reverse``.
 * ``f5 f6`` are the minimum and maximum values for the CFS :math:`\sigma` parameter.
 
 The CFS values (which are internally specified) used for the default standard first order PML are: ``#pml_cfs: constant forward 0 0 constant forward 1 1 quartic forward 0 None``. Specifying 'None' for the maximum value of :math:`\sigma` forces gprMax to calculate it internally based on the relative permittivity and permeability of the underlying materials in the model.
 
+The parameters will be applied to all slabs of the PML that are switched on.
+
 .. tip::
     ``forward`` direction implies minimum parameter value at the inner boundary of the PML and maximum parameter value at the edge of computational domain, ``reverse`` is the opposite.