diff --git a/doc/source/index.rst b/doc/source/index.rst
index 380b478c8..42ef2d4cd 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -76,7 +76,7 @@ Limitations
 - Only the Mechanical APDL solver is supported.
 - The following operators and features are only supported if the model was preprocessed with ACP
   and if the corresponding lay-up definition file is passed to the :class:`.CompositeModel` class.
-  - The evaluation of the failure criteria for sandwich (:class:`FaceSheetWrinklingCriterion`, :class:`ShearCrimpingCriterion`)
+  - The evaluation of the failure criteria for sandwich (:class:`FaceSheetWrinklingCriterion`, :class:`ShearCrimpingCriterion`) classes
     for solid elements. Layered shell elements are always supported.
   - The computation of interlaminar normal stresses (s3) for layered shell elements.
     Otherwise, s3 is zero. This also affects 3D failure criteria which use s3, such as Puck 3D.