diff --git a/doc/src/Errors_messages.rst b/doc/src/Errors_messages.rst
index f3be94a239..96e21da681 100644
--- a/doc/src/Errors_messages.rst
+++ b/doc/src/Errors_messages.rst
@@ -502,7 +502,8 @@ Doc page with :doc:`WARNING messages <Errors_warnings>`
 *Bond/react: Unknown section in map file*
    Please ensure reaction map files are properly formatted.
 
-*Bond/react: Atom affected by reaction too close to template edge*
+*Bond/react: Atom type affected by reaction too close to template edge*
+*Bond/react: Bond type affected by reaction too close to template edge*
    This means an atom which changes type or connectivity during the
    reaction is too close to an 'edge' atom defined in the map
    file. This could cause incorrect assignment of bonds, angle, etc.
diff --git a/doc/src/fix_bond_react.rst b/doc/src/fix_bond_react.rst
index 82ab6beaa3..bbc6fbf864 100644
--- a/doc/src/fix_bond_react.rst
+++ b/doc/src/fix_bond_react.rst
@@ -213,9 +213,10 @@ surrounding topology. As described below, the bonding atom pairs of
 the pre-reacted template are specified by atom ID in the map file. The
 pre-reacted molecule template should contain as few atoms as possible
 while still completely describing the topology of all atoms affected
-by the reaction (which includes all atoms that change atom type). For
-example, if the force field contains dihedrals, the pre-reacted
-template should contain any atom within three bonds of reacting atoms.
+by the reaction (which includes all atoms that change atom type or
+connectivity, and all bonds that change bond type). For example, if
+the force field contains dihedrals, the pre-reacted template should
+contain any atom within three bonds of reacting atoms.
 
 Some atoms in the pre-reacted template that are not reacting may have
 missing topology with respect to the simulation. For example, the