diff --git a/doc/src/fix_wall_gran.rst b/doc/src/fix_wall_gran.rst
index 9f478e8bb1..fb986fb73e 100644
--- a/doc/src/fix_wall_gran.rst
+++ b/doc/src/fix_wall_gran.rst
@@ -186,9 +186,9 @@ info on how to re-specify a fix in an input script that reads a
 restart file, so that the operation of the fix continues in an
 uninterrupted fashion.
 
-If the :code:`contacts` option is used, this fix generates a per-atom vector
+If the :code:`contacts` option is used, this fix generates a per-atom array
 with 8 columns as output, containing the contact information for owned
-particles (nlocal on each processor). All columns in this per-atom vector will
+particles (nlocal on each processor). All columns in this per-atom array will
 be zero if no contact has occurred.  The values of these columns are listed in
 the following table:
 
diff --git a/doc/src/fix_wall_gran_region.rst b/doc/src/fix_wall_gran_region.rst
index 63b64daca5..ecf850f11e 100644
--- a/doc/src/fix_wall_gran_region.rst
+++ b/doc/src/fix_wall_gran_region.rst
@@ -222,9 +222,9 @@ uninterrupted fashion.
    use the same fix ID for fix wall/gran/region, but assign it a region
    with a different region ID.
 
-If the :code:`contacts` option is used, this fix generates a per-atom vector
+If the :code:`contacts` option is used, this fix generates a per-atom array
 with 8 columns as output, containing the contact information for owned
-particles (nlocal on each processor). All columns in this per-atom vector will
+particles (nlocal on each processor). All columns in this per-atom array will
 be zero if no contact has occurred. The values of these columns are listed in
 the following table: