diff --git a/.gitignore b/.gitignore
index 0ac0597..9bd1180 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@
 *.json
 *.dfu
 *.bit
+*.fst.hier
 abc.history
 system/synth_ecp5_out.config
 boot_code/*.bin
diff --git a/boot_code/brainfuck_mandelbrot.fst.hier b/boot_code/brainfuck_mandelbrot.fst.hier
deleted file mode 100644
index f89c73c..0000000
Binary files a/boot_code/brainfuck_mandelbrot.fst.hier and /dev/null differ