diff --git a/doc/validator-guide.md b/doc/validator-guide.md
index 4ed1a3b6a2b8ce90d021db4852ef85d236ece5f6..618a08e9562822292ce8bb337e50e2109387decd 100644
--- a/doc/validator-guide.md
+++ b/doc/validator-guide.md
@@ -79,3 +79,7 @@ Duniter should be able to resolve forks, i.e. switch on a branch that does not c
 >
 > After ~30 minutes, the fork should be resolved.
 >
+
+### Bloc computation
+
+The node should sucessfully compute one block.