diff --git a/synth/top_xoroshiro.vhdl b/synth/top_xoroshiro128plus.vhdl
similarity index 86%
rename from synth/top_xoroshiro.vhdl
rename to synth/top_xoroshiro128plus.vhdl
index 309e69a..c95c1c5 100644
--- a/synth/top_xoroshiro.vhdl
+++ b/synth/top_xoroshiro128plus.vhdl
@@ -2,16 +2,16 @@
 library ieee;
 use ieee.std_logic_1164.all;
 
-entity topxs is
+entity top_xoroshiro128plus is
     port (
         clk :   in  std_logic;
         rst :   in  std_logic;
         ready:  in  std_logic;
         valid:  out std_logic;
         data:   out std_logic_vector(63 downto 0) );
-end topxs;
+end top_xoroshiro128plus;
 
-architecture arch of topxs is
+architecture arch of top_xoroshiro128plus is
 begin
 
     inst_prng: entity work.rng_xoroshiro128plus