diff --git a/src/libcharon/sa/task_manager_v1.c b/src/libcharon/sa/task_manager_v1.c
index 13d95b4fa..32f847f8a 100644
--- a/src/libcharon/sa/task_manager_v1.c
+++ b/src/libcharon/sa/task_manager_v1.c
@@ -19,6 +19,7 @@
 #include <math.h>
 
 #include <daemon.h>
+#include <sa/tasks/ike_vendor.h>
 #include <sa/tasks/main_mode.h>
 #include <sa/tasks/quick_mode.h>
 #include <processing/jobs/retransmit_job.h>
@@ -493,6 +494,8 @@ static status_t process_request(private_task_manager_t *this,
 		switch (message->get_exchange_type(message))
 		{
 			case ID_PROT:
+				task = (task_t *)ike_vendor_create(this->ike_sa, FALSE);
+				this->passive_tasks->insert_last(this->passive_tasks, task);
 				task = (task_t *)main_mode_create(this->ike_sa, FALSE);
 				this->passive_tasks->insert_last(this->passive_tasks, task);
 				break;