diff --git a/doc/src/fix_pafi.rst b/doc/src/fix_pafi.rst
index 7cb0de0cc0..8f1d02ac49 100644
--- a/doc/src/fix_pafi.rst
+++ b/doc/src/fix_pafi.rst
@@ -40,14 +40,16 @@ Description
 
 Perform Brownian or Langevin integration whilst constraining the system to lie
 in some hyperplane, which is expected to be the tangent plane to some reference
-pathway. The instantaneous value of a modified force projection is also
-calculated, whose time integral can be shown to be equal to a free energy gradient
-along the minimum free energy path local to the reference pathway.
+pathway in a solid state system. The instantaneous value of a modified force
+projection is also calculated, whose time integral can be shown to be equal to
+the true free energy gradient along the minimum free energy path local to the reference pathway.
 A detailed discussion of the projection technique can be found in :ref:`(Swinburne) <Swinburne>`.
 
 This fix can be used with LAMMPS as demonstrated in examples/USER/misc/pafi,
-though it is primarily intended to be coupled with the PAFI C++ code, which is developed
-at `https://github.com/tomswinburne/pafi <https://github.com/tomswinburne/pafi>`_.
+though it is primarily intended to be coupled with the PAFI C++ code, developed
+at `https://github.com/tomswinburne/pafi <https://github.com/tomswinburne/pafi>`_,
+which distributes multiple LAMMPS workers in parallel to compute and collate
+hyperplane-constrained averages, allowing the calculation of free energy barriers and pathways.
 
 A :doc:`compute property/atom <compute_property_atom>` must be provided with 9 fields per atom coordinate,
 which in order are the x,y,z coordinates of a configuration on the reference path,
@@ -94,4 +96,4 @@ The option defaults are com = *yes*, overdamped = *no*
 
 .. _Swinburne:
 
-**(Swinburne)** Swinburne and Marinica, Physical Review Letters, 276, 1 (2018).
+**(Swinburne)** Swinburne and Marinica, Physical Review Letters, 120, 1 (2018)
diff --git a/examples/USER/misc/pafi/README b/examples/USER/misc/pafi/README
index 785a4abe97..f1a2b409f4 100644
--- a/examples/USER/misc/pafi/README
+++ b/examples/USER/misc/pafi/README
@@ -15,7 +15,7 @@ Unsupervised calculation of free energy barriers in large crystalline systems
 Physical Review Letters 276, 1 2018
 
 
-Also see https://github.com/tomswinburne/pafi/ for PAFI++ code which uses the USER-PAFI package when loading LAMMPS as a C++ library
+Also see https://github.com/tomswinburne/pafi/ for PAFI code which uses the USER-PAFI package when loading LAMMPS as a C++ library
 
 To compile:
 
@@ -28,4 +28,4 @@ To run the example from this folder:
 mpirun -np NPROCS /path/to/lammps/src/lmp_machine -in in.pafi
 ```
 
-To generate your own path, please see the PAFI++ documentation for more details
+To generate your own path, please see the LAMMPS documentation for more details
diff --git a/src/USER-MISC/fix_pafi.cpp b/src/USER-MISC/fix_pafi.cpp
index 079659fb7c..e901644fea 100644
--- a/src/USER-MISC/fix_pafi.cpp
+++ b/src/USER-MISC/fix_pafi.cpp
@@ -48,9 +48,9 @@ static const char cite_fix_pafi_package[] =
   "title={Unsupervised calculation of free energy barriers in large "
   "crystalline systems},\n"
   "journal={Physical Review Letters},\n"
-  "volume={276},\n"
-  "number={1},\n"
-  "pages={154-165},\n"
+  "volume={120},\n"
+  "number={13},\n"
+  "pages={135503},\n"
   "year={2018},\n"
   "publisher={APS}\n}\n"
   "Recommended to be coupled with PAFI++ code:\n"