diff --git a/lib/CPUs/MIPS/sim/tb_mips_top_syn.fdo b/lib/CPUs/MIPS/sim/tb_mips_top_syn.fdo
index b150fe1..692424c 100644
--- a/lib/CPUs/MIPS/sim/tb_mips_top_syn.fdo
+++ b/lib/CPUs/MIPS/sim/tb_mips_top_syn.fdo
@@ -24,6 +24,8 @@ vcom -explicit  -93 "../../../misc/rom_wb.vhd"
 
 # MIPS
 
+vcom -explicit  -93 "../src/core/mips_types.vhd"
+vcom -explicit  -93 "../src/core/mips_instr.vhd"
 vcom -explicit  -93 "../syn/ise101/netgen/synthesis/mips_top_synthesis.vhd"
 vcom -explicit  -93 "../src/mips_top_syn.vhd"