diff --git a/mps/manual/source/topic/error.rst b/mps/manual/source/topic/error.rst
index 6084f87dc66..c3ed24ee437 100644
--- a/mps/manual/source/topic/error.rst
+++ b/mps/manual/source/topic/error.rst
@@ -162,6 +162,8 @@ Result codes
     yet supported.
 
 
+.. _topic-error-assertion:
+
 Assertions
 ----------
 
diff --git a/mps/manual/source/topic/plinth.rst b/mps/manual/source/topic/plinth.rst
index 5377da31104..21eb18073d2 100644
--- a/mps/manual/source/topic/plinth.rst
+++ b/mps/manual/source/topic/plinth.rst
@@ -23,8 +23,9 @@ purposes, both relating to operating system support:
    necessary facilities.
 
 2. The plinth gives the :term:`client program` complete control of
-   interaction between the MPS and the user, including :ref:`messages
-   <topic-message>` and :ref:`telemetry <topic-telemetry>`.
+   interaction between the MPS and the user, including
+   :ref:`assertions <topic-error-assertion>` and :ref:`telemetry
+   <topic-telemetry>`.
 
 The plinth may be provided by the :term:`client program`; however, a
 sample implementation of the plinth using ANSI Standard C Library