diff --git a/bootrom/Makefile b/bootrom/Makefile
index fd214590..268807a0 100644
--- a/bootrom/Makefile
+++ b/bootrom/Makefile
@@ -1,7 +1,7 @@
 bootrom_img = bootrom.img
 bootrom_dump = bootrom.dump
 
-GCC=riscv64-unknown-elf-gcc
+GCC=riscv64-unknown-elf-gcc -march=rv64imafd
 OBJCOPY=riscv64-unknown-elf-objcopy
 OBJDUMP=riscv64-unknown-elf-objdump
 
diff --git a/bootrom/bootrom.img b/bootrom/bootrom.img
index e2b53a38..be6c5542 100755
Binary files a/bootrom/bootrom.img and b/bootrom/bootrom.img differ