diff --git a/doc/manual/source/the-model-file.rst b/doc/manual/source/the-model-file.rst
index 9bd4a1c63..f759b4226 100644
--- a/doc/manual/source/the-model-file.rst
+++ b/doc/manual/source/the-model-file.rst
@@ -4360,6 +4360,15 @@ which is described below.
        to correct the paths generated by the (stochastic) extended
        path algorithm.
 
+    .. option:: lmmcp
+
+       Solves the perfect foresight model with a Levenberg-Marquardt
+       mixed complementarity problem (LMMCP) solver (*Kanzow and Petra
+       (2004)*), which allows to consider inequality constraints on
+       the endogenous variables (such as a ZLB on the nominal interest
+       rate or a model with irreversible investment). For specifying the
+       necessary ``mcp``-tag, see :opt:`lmmcp`.
+       
 
 Typology and ordering of variables
 ----------------------------------