diff --git a/doc/src/Commands_compute.rst b/doc/src/Commands_compute.rst
index 91910ccdaa..753f4cdd01 100644
--- a/doc/src/Commands_compute.rst
+++ b/doc/src/Commands_compute.rst
@@ -33,6 +33,7 @@ KOKKOS, o = OPENMP, t = OPT.
    * :doc:`body/local <compute_body_local>`
    * :doc:`bond <compute_bond>`
    * :doc:`bond/local <compute_bond_local>`
+   * :doc:`born/matrix <compute_born_matrix>`
    * :doc:`centro/atom <compute_centro_atom>`
    * :doc:`centroid/stress/atom <compute_stress_atom>`
    * :doc:`chunk/atom <compute_chunk_atom>`
diff --git a/doc/src/compute.rst b/doc/src/compute.rst
index 9edd7e8474..7b4e3967eb 100644
--- a/doc/src/compute.rst
+++ b/doc/src/compute.rst
@@ -179,6 +179,7 @@ The individual style names on the :doc:`Commands compute <Commands_compute>` pag
 * :doc:`body/local <compute_body_local>` - attributes of body sub-particles
 * :doc:`bond <compute_bond>` - energy of each bond sub-style
 * :doc:`bond/local <compute_bond_local>` - distance and energy of each bond
+* :doc:`born/matrix <compute_born_matrix>` - second derivative or potential with respect to strain
 * :doc:`centro/atom <compute_centro_atom>` - centro-symmetry parameter for each atom
 * :doc:`centroid/stress/atom <compute_stress_atom>` - centroid based stress tensor for each atom
 * :doc:`chunk/atom <compute_chunk_atom>` - assign chunk IDs to each atom
diff --git a/doc/src/compute_born_matrix.rst b/doc/src/compute_born_matrix.rst
index 1f91f6bf04..6d13b51a48 100644
--- a/doc/src/compute_born_matrix.rst
+++ b/doc/src/compute_born_matrix.rst
@@ -109,6 +109,9 @@ The array values calculated by this compute are all "extensive".
 Restrictions
 """"""""""""
 
+This compute is part of the EXTRA-COMPUTE package.  It is only enabled if
+LAMMPS was built with that package.  See the :doc:`Build package <Build_package>` page for more info.
+
 The Born term can be decomposed as a product of two terms. The first one
 is a general term which depends on the configuration. The second one is
 specific to every interaction composing your forcefield (non-bonded,
@@ -124,8 +127,8 @@ none
 
 .. _VanWorkum:
 
-K.Van Workum et al. J. Chem. Phys. 125 144506 (2006)
+**(Van Workum)** K. Van Workum et al., J. Chem. Phys. 125 144506 (2006)
 
 .. _Voyiatzis:
 
-E.Voyiatzis, Computer Physics Communications 184(2013)27-33
+**(Voyiatzis)** E. Voyiatzis, Computer Physics Communications 184(2013)27-33
diff --git a/src/.gitignore b/src/.gitignore
index a9eef4b371..b601f3a3fd 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -435,6 +435,8 @@
 /compute_basal_atom.h
 /compute_body_local.cpp
 /compute_body_local.h
+/compute_born_matrix.cpp
+/compute_born_matrix.h
 /compute_cnp_atom.cpp
 /compute_cnp_atom.h
 /compute_damage_atom.cpp
diff --git a/src/EXTRA-COMPUTE/compute_born_matrix.h b/src/EXTRA-COMPUTE/compute_born_matrix.h
index 993e8972c0..caac7ca993 100644
--- a/src/EXTRA-COMPUTE/compute_born_matrix.h
+++ b/src/EXTRA-COMPUTE/compute_born_matrix.h
@@ -1,6 +1,6 @@
 /* ----------------------------------------------------------------------
    LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
-   http://lammps.sandia.gov, Sandia National Laboratories
+   http://www.lammps.org/, Sandia National Laboratories
    Steve Plimpton, sjplimp@sandia.gov
 
    Copyright (2003) Sandia Corporation.  Under the terms of Contract