diff --git a/clean.mk b/clean.mk
new file mode 100644
index 00000000..ea6b1600
--- /dev/null
+++ b/clean.mk
@@ -0,0 +1,5 @@
+clean:
+	for d in $$(find fuzzers minitests experiments -name Makefile -type f); do \
+		(cd $$(dirname $$d) && $(MAKE) clean) || true; \
+	done
+