diff --git a/src/switch_event.c b/src/switch_event.c
index 7e8a8676ba..25bab3185a 100644
--- a/src/switch_event.c
+++ b/src/switch_event.c
@@ -85,6 +85,7 @@ static switch_mutex_t *EVENT_QUEUE_MUTEX = NULL;
 static switch_hash_t *CUSTOM_HASH = NULL;
 static int THREAD_COUNT = 0;
 static int SYSTEM_RUNNING = 0;
+static uint64_t EVENT_SEQUENCE_NR = 0;
 #ifdef SWITCH_EVENT_RECYCLE
 static switch_queue_t *EVENT_RECYCLE_QUEUE = NULL;
 static switch_queue_t *EVENT_HEADER_RECYCLE_QUEUE = NULL;
@@ -1740,6 +1741,10 @@ SWITCH_DECLARE(void) switch_event_prep_for_delivery_detailed(const char *file, c
 	switch_size_t retsize;
 	switch_time_t ts = switch_micro_time_now();
 
+	switch_mutex_lock(EVENT_QUEUE_MUTEX);
+	EVENT_SEQUENCE_NR++;
+	switch_mutex_unlock(EVENT_QUEUE_MUTEX);
+
 
 	switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Event-Name", switch_event_name(event->event_id));
 	switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Core-UUID", switch_core_get_uuid());
@@ -1757,6 +1762,7 @@ SWITCH_DECLARE(void) switch_event_prep_for_delivery_detailed(const char *file, c
 	switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Event-Calling-File", switch_cut_path(file));
 	switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Event-Calling-Function", func);
 	switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Event-Calling-Line-Number", "%d", line);
+	switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Event-Sequence", "%" SWITCH_UINT64_T_FMT, (uint64_t) EVENT_SEQUENCE_NR);
 
 
 }