diff --git a/examples/hello-bert-mask/Makefile b/examples/hello-bert-mask/Makefile
new file mode 100644
index 0000000..fa511ab
--- /dev/null
+++ b/examples/hello-bert-mask/Makefile
@@ -0,0 +1,2 @@
+clean:
+	rm -rf .snakemake export sparv-workdir
\ No newline at end of file