diff --git a/projects/mips_sys/ghdl/tb_mips_sys.make b/projects/mips_sys/ghdl/tb_mips_sys.make
index 4738f64..b56653c 100644
--- a/projects/mips_sys/ghdl/tb_mips_sys.make
+++ b/projects/mips_sys/ghdl/tb_mips_sys.make
@@ -57,12 +57,14 @@ SRCS += $(LIB_PATH)/JBUS/gpio/src/gpio_wb.vhd
 # LCD
 SRCS += $(LIB_PATH)/misc/lcd_port.vhd
 
-# Flash and USB
+# Async port
 SRCS += $(LIB_PATH)/JBUS/async_port/src/async_types.vhd
 SRCS += $(LIB_PATH)/JBUS/async_port/src/async_port_wb.vhd
-SRCS += $(LIB_PATH)/JBUS/flash_port/src/flash_port_wb.vhd
 SRCS += ../src/async_defs_sim.vhd
 
+# Flash and USB
+SRCS += $(LIB_PATH)/JBUS/flash_port/src/flash_port_wb.vhd
+
 # Sync SRAM
 SRCS += $(LIB_PATH)/SSRAM/src/package_utility.vhd
 SRCS += $(LIB_PATH)/SSRAM/src/CY7C1354B.vhd
@@ -88,11 +90,6 @@ SRCS += $(LIB_PATH)/ac97_ctrl/src/core/ac97_wb.vhd
 # Ethernet MAC
 SRCS += $(EMAC_JBUS_SRCS)
 
-# Async port
-SRCS += $(LIB_PATH)/JBUS/async_port/src/async_types.vhd
-SRCS += $(LIB_PATH)/JBUS/async_port/src/async_port_wb.vhd
-SRCS += ../src/async_defs.vhd
-
 # Top and TB
 SRCS += ../src/mips_sys_sim.vhd
 SRCS += ../src/tb_mips_sys.vhd