diff --git a/Makefile b/Makefile
index 3640729..162adfe 100644
--- a/Makefile
+++ b/Makefile
@@ -11,6 +11,10 @@ tree : all .FORCE
 test : all .FORCE
 	./dotest
 
+debug : all .FORCE
+	./$(MAIN) < debug.c > debug.out
+	#diff debug.out debug.c
+
 $(MAIN) : $(MAIN).c object.c buffer.h
 	$(CC) $(CFLAGS) -o $@ $@.c $(LDLIBS)
 
@@ -26,6 +30,9 @@ clean : .FORCE
 tidy : .FORCE
 	rm -f *~ $(MAIN)-tree.out
 
-spotless : clean tidy
+cleansed : .FORCE
+	rm -f debug.out
+
+spotless : clean tidy cleansed
 
 .FORCE :