diff --git a/lsfs_vbr/build.sh b/lsfs_vbr/build.sh
index f9f185b..06721d3 100644
--- a/lsfs_vbr/build.sh
+++ b/lsfs_vbr/build.sh
@@ -3,4 +3,4 @@ cd lsfs_16-bit
 bash build.sh
 mv disk.out ../disk.out
 cd ..
-nasm -f bin vbr_lsfs.nasm -o vbr.bin
\ No newline at end of file
+nasm -fbin vbr_lsfs.nasm -o vbr.bin
\ No newline at end of file