diff --git a/doc/Eqs/fix_wall_colloid.jpg b/doc/Eqs/fix_wall_colloid.jpg
index e18aa70cdf..c59771d5c0 100644
Binary files a/doc/Eqs/fix_wall_colloid.jpg and b/doc/Eqs/fix_wall_colloid.jpg differ
diff --git a/doc/Eqs/fix_wall_colloid.tex b/doc/Eqs/fix_wall_colloid.tex
index 9c61af1dd2..64dcc15f44 100644
--- a/doc/Eqs/fix_wall_colloid.tex
+++ b/doc/Eqs/fix_wall_colloid.tex
@@ -3,7 +3,7 @@
 \begin{document}
 
 \begin{eqnarray}
-E &=& 144 \phi^2 \epsilon \left[ \frac{\sigma^{6}}{7560} 
+E &=& 144 \epsilon \left[ \frac{\sigma^{6}}{7560} 
   \left(\frac{6R-D}{D^{7}} + \frac{D+8R}{(D+2R)^{7}} \right) - 
   \frac{}{} \right. \nonumber \\
   &&\qquad \left. \frac{1}{6} \left(\frac{2R(D+R) + D(D+2R)
diff --git a/doc/fix_wall.html b/doc/fix_wall.html
index 281d36a005..956a25ed68 100644
--- a/doc/fix_wall.html
+++ b/doc/fix_wall.html
@@ -29,18 +29,16 @@
 
 <LI>face = <I>xlo</I> or <I>xhi</I> or <I>ylo</I> or <I>yhi</I> or <I>zlo</I> or <I>zhi</I> 
 
-<LI>  args = coord epsilon sigma cutoff
+<PRE>  args = coord epsilon sigma cutoff
     coord = position of wall = EDGE or constant or variable
       EDGE = current lo or hi edge of simulation box
       constant = number like 0.0 or -30.0 (distance units)
       variable = <A HREF = "variable.html">equal-style variable</A> like v_x or v_wiggle
     epsilon = strength factor for wall-particle interaction (energy or energy/distance^2 units)
-      epsilon can be a variable (see below) 
-
-<LI>    sigma = size factor for wall-particle interaction (distance units)
-      sigma can be a variable (see below) 
-
-<PRE>    cutoff = distance from wall at which wall-particle interaction is cut off (distance units) 
+      epsilon can be a variable (see below)
+    sigma = size factor for wall-particle interaction (distance units)
+      sigma can be a variable (see below)
+    cutoff = distance from wall at which wall-particle interaction is cut off (distance units) 
 </PRE>
 <LI>zero or more keyword/value pairs may be appended 
 
diff --git a/doc/fix_wall.txt b/doc/fix_wall.txt
index 803aff618e..fa3e319797 100644
--- a/doc/fix_wall.txt
+++ b/doc/fix_wall.txt
@@ -25,9 +25,9 @@ face = {xlo} or {xhi} or {ylo} or {yhi} or {zlo} or {zhi} :l
       constant = number like 0.0 or -30.0 (distance units)
       variable = "equal-style variable"_variable.html like v_x or v_wiggle
     epsilon = strength factor for wall-particle interaction (energy or energy/distance^2 units)
-      epsilon can be a variable (see below) :l
+      epsilon can be a variable (see below)
     sigma = size factor for wall-particle interaction (distance units)
-      sigma can be a variable (see below) :l
+      sigma can be a variable (see below)
     cutoff = distance from wall at which wall-particle interaction is cut off (distance units) :pre
 zero or more keyword/value pairs may be appended :l
 keyword = {units} or {fld} :l