diff --git a/doc/src/Commands_fix.rst b/doc/src/Commands_fix.rst
index effccd55bf..9d996f6c51 100644
--- a/doc/src/Commands_fix.rst
+++ b/doc/src/Commands_fix.rst
@@ -103,6 +103,7 @@ OPT.
    * :doc:`manifoldforce <fix_manifoldforce>`
    * :doc:`mdi/engine <fix_mdi_engine>`
    * :doc:`meso/move <fix_meso_move>`
+   * :doc:`mol/swap <fix_mol_swap>`
    * :doc:`momentum (k) <fix_momentum>`
    * :doc:`momentum/chunk <fix_momentum>`
    * :doc:`move <fix_move>`
diff --git a/doc/src/fix.rst b/doc/src/fix.rst
index c45ae6a801..c5295c77d7 100644
--- a/doc/src/fix.rst
+++ b/doc/src/fix.rst
@@ -246,6 +246,7 @@ accelerated styles exist.
 * :doc:`manifoldforce <fix_manifoldforce>` - restrain atoms to a manifold during minimization
 * :doc:`mdi/engine <fix_mdi_engine>` - connect LAMMPS to external programs via the MolSSI Driver Interface (MDI)
 * :doc:`meso/move <fix_meso_move>` - move mesoscopic SPH/SDPD particles in a prescribed fashion
+* :doc:`mol/swap <fix_mol_swap>` - Monte Carlo atom type swapping with a molecule
 * :doc:`momentum <fix_momentum>` - zero the linear and/or angular momentum of a group of atoms
 * :doc:`momentum/chunk <fix_momentum>` - zero the linear and/or angular momentum of a chunk of atoms
 * :doc:`move <fix_move>` - move atoms in a prescribed fashion