diff --git a/lemon/full_graph.h b/lemon/full_graph.h
--- a/lemon/full_graph.h
+++ b/lemon/full_graph.h
@@ -31,7 +31,7 @@
   class FullDigraphBase {
   public:
 
-    typedef FullDigraphBase Graph;
+    typedef FullDigraphBase Digraph;
 
     class Node;
     class Arc;
@@ -169,10 +169,10 @@
   ///
   /// \sa FullGraph
   class FullDigraph : public ExtendedFullDigraphBase {
+    typedef ExtendedFullDigraphBase Parent;
+
   public:
 
-    typedef ExtendedFullDigraphBase Parent;
-
     /// \brief Constructor
     FullDigraph() { construct(0); }
 
@@ -226,8 +226,6 @@
 
 
   class FullGraphBase {
-    int _node_num;
-    int _edge_num;
   public:
 
     typedef FullGraphBase Graph;
@@ -238,6 +236,9 @@
 
   protected:
 
+    int _node_num;
+    int _edge_num;
+
     FullGraphBase() {}
 
     void construct(int n) { _node_num = n; _edge_num = n * (n - 1) / 2; }
@@ -537,10 +538,10 @@
   ///
   /// \sa FullDigraph
   class FullGraph : public ExtendedFullGraphBase {
+    typedef ExtendedFullGraphBase Parent;
+
   public:
 
-    typedef ExtendedFullGraphBase Parent;
-
     /// \brief Constructor
     FullGraph() { construct(0); }