diff --git a/package/ejabberd/Config.in b/package/ejabberd/Config.in
index 53b688b5d9..7d51d1de9e 100644
--- a/package/ejabberd/Config.in
+++ b/package/ejabberd/Config.in
@@ -3,11 +3,11 @@ config BR2_PACKAGE_EJABBERD
 	depends on BR2_PACKAGE_ERLANG
 	depends on BR2_INSTALL_LIBSTDCPP # jiffy, stringprep
 	select BR2_PACKAGE_ERLANG_EIMP
-	select BR2_PACKAGE_ERLANG_JIFFY
+	select BR2_PACKAGE_ERLANG_JIFFY # runtime
 	select BR2_PACKAGE_ERLANG_LAGER
 	select BR2_PACKAGE_ERLANG_P1_CACHE_TAB
 	select BR2_PACKAGE_ERLANG_P1_ICONV
-	select BR2_PACKAGE_ERLANG_P1_OAUTH2
+	select BR2_PACKAGE_ERLANG_P1_OAUTH2 # runtime
 	select BR2_PACKAGE_ERLANG_P1_SIP
 	select BR2_PACKAGE_ERLANG_P1_STRINGPREP
 	select BR2_PACKAGE_ERLANG_P1_STUN