1 files changed, 6 insertions, 8 deletions
diff --git a/src/kompsos-pretty_print.ads b/src/kompsos-pretty_print.ads
index 5b443f9..5e6b9ca 100644
--- a/src/kompsos-pretty_print.ads
+++ b/src/kompsos-pretty_print.ads
@@ -8,7 +8,7 @@
 
 private with
 
-    Ada.Containers.Ordered_Maps;
+    Ada.Containers.Hashed_Maps;
 
 
 generic
@@ -64,13 +64,11 @@ private
 
 
 
-    function "<"
-           (Left, Right : in Graph_Component_Access)
-        return Boolean;
-
-    package DOT_Node_Maps is new Ada.Containers.Ordered_Maps
-       (Key_Type     => Graph_Component_Access,
-        Element_Type => Long_Natural);
+    package DOT_Node_Maps is new Ada.Containers.Hashed_Maps
+       (Key_Type        => Graph_Component_Access,
+        Element_Type    => Long_Natural,
+        Hash            => Graph_Component_Access_Hash,
+        Equivalent_Keys => "=");
 
 
 end Kompsos.Pretty_Print;