diff --git a/Rx.vhd b/Rx.vhd
index 98dac7df760c22a36abf2db6508a69ae236fba53..1e6c9a6ab98118f52f38b084ae0fa6ce03ff5334 100644
--- a/Rx.vhd
+++ b/Rx.vhd
@@ -1,6 +1,9 @@
 library IEEE;
 use IEEE.STD_LOGIC_1164.ALL;
 
+library Files;
+use Files.fifo;
+
 entity Rx is
     generic(
         F_CLK_115k: integer:= 54;