diff --git a/fifo.c b/fifo.c
index e33a4e2..3939461 100644
--- a/fifo.c
+++ b/fifo.c
@@ -199,6 +199,7 @@ void fifo_enqueue(struct mag_buf *buf)
         pthread_cond_signal(&fifo_notempty_cond);
     } else {
         fifo_tail->next = buf;
+        fifo_tail = buf;
     }
 
  done: