diff --git a/doc/Section_commands.html b/doc/Section_commands.html
index cc9a577d83..2c6b1db8c1 100644
--- a/doc/Section_commands.html
+++ b/doc/Section_commands.html
@@ -328,7 +328,7 @@ of each style or click on the style itself for a full description:
 <TR ALIGN="center"><TD ><A HREF = "fix_poems.html">poems</A></TD><TD ><A HREF = "fix_pour.html">pour</A></TD><TD ><A HREF = "fix_press_berendsen.html">press/berendsen</A></TD><TD ><A HREF = "fix_print.html">print</A></TD><TD ><A HREF = "fix_reax_bonds.html">reax/bonds</A></TD><TD ><A HREF = "fix_recenter.html">recenter</A></TD><TD ><A HREF = "fix_rigid.html">rigid</A></TD><TD ><A HREF = "fix_setforce.html">setforce</A></TD></TR>
 <TR ALIGN="center"><TD ><A HREF = "fix_shake.html">shake</A></TD><TD ><A HREF = "fix_spring.html">spring</A></TD><TD ><A HREF = "fix_spring_rg.html">spring/rg</A></TD><TD ><A HREF = "fix_spring_self.html">spring/self</A></TD><TD ><A HREF = "fix_store_coord.html">store/coord</A></TD><TD ><A HREF = "fix_store_force.html">store/force</A></TD><TD ><A HREF = "fix_temp_berendsen.html">temp/berendsen</A></TD><TD ><A HREF = "fix_temp_rescale.html">temp/rescale</A></TD></TR>
 <TR ALIGN="center"><TD ><A HREF = "fix_thermal_conductivity.html">thermal/conductivity</A></TD><TD ><A HREF = "fix_tmd.html">tmd</A></TD><TD ><A HREF = "fix_ttm.html">ttm</A></TD><TD ><A HREF = "fix_viscosity.html">viscosity</A></TD><TD ><A HREF = "fix_viscous.html">viscous</A></TD><TD ><A HREF = "fix_wall.html">wall/colloid</A></TD><TD ><A HREF = "fix_wall_gran.html">wall/gran</A></TD><TD ><A HREF = "fix_wall.html">wall/harmonic</A></TD></TR>
-<TR ALIGN="center"><TD ><A HREF = "fix_wall.html">wall/lj126</A></TD><TD ><A HREF = "fix_wall.html">wall/lj93</A></TD><TD ><A HREF = "fix_wall_reflect.html">wall/reflect</A> 
+<TR ALIGN="center"><TD ><A HREF = "fix_wall.html">wall/lj126</A></TD><TD ><A HREF = "fix_wall.html">wall/lj93</A></TD><TD ><A HREF = "fix_wall_reflect.html">wall/reflect</A></TD><TD ><A HREF = "fix_wall_region.html">wall/region</A> 
 </TD></TR></TABLE></DIV>
 
 <P>These are fix styles contributed by users, which can be used if
diff --git a/doc/Section_commands.txt b/doc/Section_commands.txt
index 0d2ac94e8a..50a849f880 100644
--- a/doc/Section_commands.txt
+++ b/doc/Section_commands.txt
@@ -445,7 +445,8 @@ of each style or click on the style itself for a full description:
 "wall/harmonic"_fix_wall.html,
 "wall/lj126"_fix_wall.html,
 "wall/lj93"_fix_wall.html,
-"wall/reflect"_fix_wall_reflect.html :tb(c=8,ea=c)
+"wall/reflect"_fix_wall_reflect.html,
+"wall/region"_fix_wall_region.html :tb(c=8,ea=c)
 
 These are fix styles contributed by users, which can be used if
 "LAMMPS is built with the appropriate package"_Section_start.html#2_3.
diff --git a/doc/fix.html b/doc/fix.html
index b97d302188..f248f14508 100644
--- a/doc/fix.html
+++ b/doc/fix.html
@@ -223,7 +223,8 @@ list of fix styles available in LAMMPS:
 <LI><A HREF = "fix_wall.html">wall/harmonic</A> - harmonic spring wall
 <LI><A HREF = "fix_wall.html">wall/lj126</A> - Lennard-Jones 12-6 wall
 <LI><A HREF = "fix_wall.html">wall/lj93</A> - Lennard-Jones 9-3 wall
-<LI><A HREF = "fix_wall_reflect.html">wall/reflect</A> - reflecting wall(s) 
+<LI><A HREF = "fix_wall_reflect.html">wall/reflect</A> - reflecting wall(s)
+<LI><A HREF = "fix_wall_region.html">wall/region</A> - use region surface as wall 
 </UL>
 <P>There are also additional fix styles submitted by users which are
 included in the LAMMPS distribution.  The list of these with links to
diff --git a/doc/fix.txt b/doc/fix.txt
index 5ec9842095..e9a6c31f41 100644
--- a/doc/fix.txt
+++ b/doc/fix.txt
@@ -228,7 +228,8 @@ list of fix styles available in LAMMPS:
 "wall/harmonic"_fix_wall.html - harmonic spring wall
 "wall/lj126"_fix_wall.html - Lennard-Jones 12-6 wall
 "wall/lj93"_fix_wall.html - Lennard-Jones 9-3 wall
-"wall/reflect"_fix_wall_reflect.html - reflecting wall(s) :ul
+"wall/reflect"_fix_wall_reflect.html - reflecting wall(s)
+"wall/region"_fix_wall_region.html - use region surface as wall :ul
 
 There are also additional fix styles submitted by users which are
 included in the LAMMPS distribution.  The list of these with links to