diff --git a/Choose-a-build-number.md b/Choose-a-build-number.md
index 90392aa..90960a0 100644
--- a/Choose-a-build-number.md
+++ b/Choose-a-build-number.md
@@ -1,6 +1,6 @@
-How to choose a build number?
+**How to choose a build number?**
 
-First of all, is necessary select a DSM model before.
+First of all, is necessary **select a DSM model before**: [Choose a DSM model](https://github.com/fbelavenuto/arpl/wiki/Choose-a-DSM-model)
 
 Go to main menu and select the second option: