diff --git a/core/net/llsec/llsec.h b/core/net/llsec/llsec.h
index 965a1b06d..3953cd549 100644
--- a/core/net/llsec/llsec.h
+++ b/core/net/llsec/llsec.h
@@ -1,4 +1,5 @@
 /**
+ * \ingroup net
  * \defgroup llsec Link Layer Security
  * 
  * Layer for implementing link layer security.