diff --git a/sys/netinet6/nd6_rtr.c b/sys/netinet6/nd6_rtr.c
index 7b4af3cc73bd..b5811f087dbd 100644
--- a/sys/netinet6/nd6_rtr.c
+++ b/sys/netinet6/nd6_rtr.c
@@ -653,6 +653,8 @@ defrouter_select(void)
 			selected_dr = dr;
 		}
 		IF_AFDATA_UNLOCK(dr->ifp);
+		if (ln != NULL)
+			LLE_RUNLOCK(ln);
 
 		if (dr->installed && installed_dr == NULL)
 			installed_dr = dr;
@@ -683,6 +685,8 @@ defrouter_select(void)
 			selected_dr = installed_dr;
 		}
 		IF_AFDATA_UNLOCK(installed_dr->ifp);
+		if (ln != NULL)
+			LLE_RUNLOCK(ln);
 	}
 
 	/*