diff --git a/docs/routing/babeld/babeld.md b/docs/routing/babeld/babeld.md
index 8f3dd3c..50ca46d 100644
--- a/docs/routing/babeld/babeld.md
+++ b/docs/routing/babeld/babeld.md
@@ -44,6 +44,8 @@ redistribute deny
 in ip <OWNNET> deny
 in ip fd00::/8 le 64 ge 44 allow
 in deny
+
+install pref-src <OWNIP>
 ```
 
 Replace `<OWNNET>` with your prefix and `<OWN LENGTH>` with your prefix length.
@@ -88,6 +90,11 @@ in deny
 Here the filters are defined, which routes are filtered from neighbors.
 The own route is not accepted. Only ULA addresses are accepted. All other routes are filtered.
 
+```
+install pref-src <OWNIP>
+```
+This instruction ensures that the routes are installed with their own IP address as the source address.
+
 The `out` and `install` filters are omitted. The babeld routing table contains only CRXN routes. Therefore no filtering must be made with the export into the kernel or to neighbors.
 
 ### Filter