diff --git a/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_adv.c b/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_adv.c
index 715c57c2ea4..c8c8eec5811 100644
--- a/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_adv.c
+++ b/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_adv.c
@@ -27,6 +27,7 @@
 #include "lll.h"
 #include "lll_vendor.h"
 #include "lll_adv.h"
+#include "lll_conn.h"
 #include "lll_chan.h"
 #include "lll_filter.h"