diff --git a/doc/manuals/chapters/overview.adoc b/doc/manuals/chapters/overview.adoc
index 0b936173e..9251a7cc3 100644
--- a/doc/manuals/chapters/overview.adoc
+++ b/doc/manuals/chapters/overview.adoc
@@ -52,7 +52,7 @@ digraph G {
 }
 ----
 
-[[fig-bsc]]
+[[fig-bsc-e1]]
 .Integration of legacy E1 BTS in AoIP network
 [graphviz]
 ----