diff --git a/Makefile b/Makefile
index baf422e5c..728a18bb1 100644
--- a/Makefile
+++ b/Makefile
@@ -67,6 +67,7 @@ distclean clean:
 	$(MAKE) -C perf-tester clean
 	$(MAKE) -C kernel-module clean
 	$(MAKE) -C t clean
+	$(MAKE) -C lib clean
 	rm -f config.mk
 
 .DEFAULT:
diff --git a/lib/Makefile b/lib/Makefile
new file mode 100644
index 000000000..d727c3383
--- /dev/null
+++ b/lib/Makefile
@@ -0,0 +1,7 @@
+.PHONY: clean distclean
+
+.DEFAULT:
+	true
+
+clean distclean:
+	rm -f *.strhash.*