diff --git a/Makefile b/Makefile
index 021cef7..7637f62 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,14 @@
 CFLAGS = -lcrypto -fPIC
 
+.PHONY: clean
+
 libdispass.so: dispass.o
 	$(CC) $(CFLAGS) -shared -o libdispass.so $^
 
 dispasstest: libdispass.so dispasstest.o
 	$(CC) -o dispasstest -L. -ldispass dispasstest.o
+
+clean:
+	rm -f dispasstest
+	rm -f *.so
+	rm -f *.o