diff --git a/core/net/mac/tsch/tsch-log.c b/core/net/mac/tsch/tsch-log.c
index bfb033e9d..23794a5dd 100644
--- a/core/net/mac/tsch/tsch-log.c
+++ b/core/net/mac/tsch/tsch-log.c
@@ -84,11 +84,15 @@ tsch_log_process_pending(void)
   }
   while((log_index = ringbufindex_peek_get(&log_ringbuf)) != -1) {
     struct tsch_log_t *log = &log_array[log_index];
-    struct tsch_slotframe *sf = tsch_schedule_get_slotframe_by_handle(log->link->slotframe_handle);
-    printf("TSCH: {asn-%x.%lx link-%u-%u-%u-%u ch-%u} ",
-        log->asn.ms1b, log->asn.ls4b,
-        log->link->slotframe_handle, sf ? sf->size.val : 0, log->link->timeslot, log->link->channel_offset,
-        tsch_calculate_channel(&log->asn, log->link->channel_offset));
+    if(log->link == NULL) {
+      printf("TSCH: {asn-%x.%lx link-NULL} ", log->asn.ms1b, log->asn.ls4b);
+    } else {
+      struct tsch_slotframe *sf = tsch_schedule_get_slotframe_by_handle(log->link->slotframe_handle);
+      printf("TSCH: {asn-%x.%lx link-%u-%u-%u-%u ch-%u} ",
+             log->asn.ms1b, log->asn.ls4b,
+             log->link->slotframe_handle, sf ? sf->size.val : 0, log->link->timeslot, log->link->channel_offset,
+             tsch_calculate_channel(&log->asn, log->link->channel_offset));
+    }
     switch(log->type) {
       case tsch_log_tx:
         printf("%s-%u-%u %u tx %d, st %d-%d",