diff --git a/doc/src/fix_acks2_reaxff.rst b/doc/src/fix_acks2_reaxff.rst
index 566e17a330..79a9cf8ea6 100644
--- a/doc/src/fix_acks2_reaxff.rst
+++ b/doc/src/fix_acks2_reaxff.rst
@@ -123,7 +123,8 @@ components in non-periodic directions.
 Related commands
 """"""""""""""""
 
-:doc:`pair_style reaxff <pair_reaxff>`, :doc:`fix qeq/reaxff <fix_qeq_reaxff>`
+:doc:`pair_style reaxff <pair_reaxff>`, :doc:`fix qeq/reaxff <fix_qeq_reaxff>`,
+:doc:`fix qtpi/reaxff <fix_qtpie_reaxff>`
 
 Default
 """""""
diff --git a/doc/src/fix_qeq_reaxff.rst b/doc/src/fix_qeq_reaxff.rst
index c449c8cda9..e1a09c4fc3 100644
--- a/doc/src/fix_qeq_reaxff.rst
+++ b/doc/src/fix_qeq_reaxff.rst
@@ -139,7 +139,8 @@ as an atom-style variable using the *potential* keyword for `fix efield`.
 Related commands
 """"""""""""""""
 
-:doc:`pair_style reaxff <pair_reaxff>`, :doc:`fix qeq/shielded <fix_qeq>`
+:doc:`pair_style reaxff <pair_reaxff>`, :doc:`fix qeq/shielded <fix_qeq>`,
+:doc:`fix acks2/reaxff <fix_acks2_reaxff>`, :doc:`fix qtpie/reaxff <fix_qtpie_reaxff>`
 
 Default
 """""""