diff --git a/swarmlab/main.adoc b/swarmlab/main.adoc
index c777741..a9c2449 100644
--- a/swarmlab/main.adoc
+++ b/swarmlab/main.adoc
@@ -12,6 +12,7 @@
 
 include::{sourcedir}/init/intro.adoc[]
 
+
 <<<
 
 include::{sourcedir}/registration/registration_main.adoc[]