diff --git a/projects/mips_sys/sim/tb_mips_sys.fdo b/projects/mips_sys/sim/tb_mips_sys.fdo
index 93559ca..e8a07ba 100644
--- a/projects/mips_sys/sim/tb_mips_sys.fdo
+++ b/projects/mips_sys/sim/tb_mips_sys.fdo
@@ -96,6 +96,7 @@ vcom -explicit  -93 "../../../lib/ac97_ctrl/src/core/ac97_wb.vhd"
 vcom -explicit  -93 "../../../lib/emac/src/emac_types.vhd"
 vcom -explicit  -93 "../../../lib/emac/src/piso.vhd"
 vcom -explicit  -93 "../../../lib/emac/src/sipo.vhd"
+vcom -explicit  -93 "../../../lib/emac/src/crc32.vhd"
 vcom -explicit  -93 "../../../lib/emac/src/emac_rx.vhd"
 vcom -explicit  -93 "../../../lib/emac/src/emac_tx.vhd"
 vcom -explicit  -93 "../../../lib/emac/src/emac_top_jb.vhd"