diff --git a/Cortex-M0/soclabs_demo/systems/cortex_m0_mcu/verilog/cmsdk_mcu_chip.v b/Cortex-M0/soclabs_demo/systems/cortex_m0_mcu/verilog/cmsdk_mcu_chip.v
index 240cef550f95a9422ce53cd8bb52dd740461d6e1..c966601e10eaad0e6add586889f992ca710ee0d0 100644
--- a/Cortex-M0/soclabs_demo/systems/cortex_m0_mcu/verilog/cmsdk_mcu_chip.v
+++ b/Cortex-M0/soclabs_demo/systems/cortex_m0_mcu/verilog/cmsdk_mcu_chip.v
@@ -38,7 +38,7 @@
 
 `include "cmsdk_mcu_defs.v"
 
-`define SYNTHBOOTROM
+`define SYNTHBOOTROM 1
 
 module cmsdk_mcu_chip #(
   //-----------------------------------------
@@ -1146,8 +1146,9 @@ cmsdk_ahb_rom
 //----------------------------------------
 // Boot loader / Firmware
 //----------------------------------------
-
+// Only use if BOOT_MEM_TYPE is not zero
 `ifdef SYNTHBOOTROM
+//ahb_bootrom
 ahb_bootrom__mangled
 //  #(.AW(10)  ) // 1K bytes ROM
    u_ahb_bootloader (