diff --git a/doc/variables.xml b/doc/variables.xml
index fc84de07..a15b8c44 100644
--- a/doc/variables.xml
+++ b/doc/variables.xml
@@ -689,9 +689,9 @@
             <command>
                 <option>diskiograph</option>
             </command>
-            <option>("normal"|"log") (height),(width) (gradient
+			<option>(device) ("normal"|"log") (height),(width) (gradient
             colour 1) (gradient colour 2) (scale) (-t)
-            (device)</option>
+            </option>
         </term>
         <listitem>Disk IO graph, colours defined in hex, minus the
         #. If scale is non-zero, it becomes the scale for the
@@ -707,9 +707,9 @@
             <command>
                 <option>diskiograph_read</option>
             </command>
-            <option>("normal"|"log") (height),(width) (gradient
+            <option>(device) ("normal"|"log") (height),(width) (gradient
             colour 1) (gradient colour 2) (scale) (-t)
-            (device)</option>
+            </option>
         </term>
         <listitem>Disk IO graph for reads, colours defined in hex,
         minus the #. If scale is non-zero, it becomes the scale for
@@ -726,9 +726,9 @@
             <command>
                 <option>diskiograph_write</option>
             </command>
-            <option>("normal"|"log") (height),(width) (gradient
+            <option>(device) ("normal"|"log") (height),(width) (gradient
             colour 1) (gradient colour 2) (scale) (-t)
-            (device)</option>
+            </option>
         </term>
         <listitem>Disk IO graph for writes, colours defined in hex,
         minus the #. If scale is non-zero, it becomes the scale for
@@ -765,9 +765,9 @@
             <command>
                 <option>downspeedgraph</option>
             </command>
-            <option>("normal"|"log") (height),(width) (gradient
+            <option>(netdev) ("normal"|"log") (height),(width) (gradient
             colour 1) (gradient colour 2) (scale) (-t)
-            (net)</option>
+            </option>
         </term>
         <listitem>Download speed graph, colours defined in hex,
         minus the #. If scale is non-zero, it becomes the scale for
@@ -1777,9 +1777,10 @@
             <command>
                 <option>lua_graph</option>
             </command>
-            <option>("normal"|"log") (height),(width) (gradient
-            colour 1) (gradient colour 2) (scale) (-t)
-            function_name (function parameters)</option>
+			<option>
+			function_name (function parameters)
+				("normal"|"log") (height),(width) (gradient colour 1) (gradient colour 2) (scale) (-t)
+		</option>
         </term>
         <listitem>Executes a Lua function with given parameters and
         draws a graph. Expects result value to be any number, and by default will scale to show the full range. See also 'lua_load' on how to load
@@ -3060,9 +3061,9 @@
             <command>
                 <option>upspeedgraph</option>
             </command>
-            <option>("normal"|"log") (height),(width) (gradient
+			<option>(netdev) ("normal"|"log") (height),(width) (gradient
             colour 1) (gradient colour 2) (scale) (-t)
-            (net)</option>
+            </option>
         </term>
         <listitem>Upload speed graph, colours defined in hex, minus
         the #. If scale is non-zero, it becomes the scale for the