diff --git a/doc/_doxygen/groups.dox b/doc/_doxygen/groups.dox
index 69a3b892637..08e04e2b401 100644
--- a/doc/_doxygen/groups.dox
+++ b/doc/_doxygen/groups.dox
@@ -68,6 +68,7 @@
 
 @brief Modem APIs
 @defgroup modem Modem APIs
+@ingroup connectivity
 @since 3.5
 @version 0.1.0
 @{