diff --git a/docs/rbtree.txt b/docs/rbtree.txt
index dc7ee17..02173a2 100644
--- a/docs/rbtree.txt
+++ b/docs/rbtree.txt
@@ -22,7 +22,8 @@ Data structures
 ~~~~~~~~~~~~~~~
 
 * `rbnode`
-
++
+--
 The binary tree node.
 
 `key`::
@@ -30,18 +31,20 @@ The binary tree node.
 
 `data`::
     pointer to the data associated with the key
-    
+
 `child`::
     pointers to the left and right child to this node
 
 `color`::
     the color, should be a value of `RB_BLACK` or `RB_RED`
+--
 
 ++++
 ++++
 
 * `rbtree`
-
++
+--
 Structure that holds a tree of nodes
 
 `root`::
@@ -59,6 +62,7 @@ NOTE: You may only need this if you store the data in another structure and has
 `cmp_fn`::
     Pointer to the function that is used to compare `rbnode->data` pointers. +
     Shall return a value greater than zero if 'ptr1' > 'ptr2', a value less than zero if 'ptr1' < 'ptr2' and zero if 'ptr1' == 'ptr2'.
+--
 
 Functions
 ~~~~~~~~~