diff --git a/Makefile b/Makefile
index 4f178cb..3640729 100644
--- a/Makefile
+++ b/Makefile
@@ -9,8 +9,7 @@ tree : all .FORCE
 	./$(MAIN) < $(MAIN)-tree.txt > $(MAIN)-tree.out
 
 test : all .FORCE
-	./$(MAIN) < $(MAIN)-test.txt > $(MAIN)-test.out
-	diff $(MAIN)-test.ref $(MAIN)-test.out
+	./dotest
 
 $(MAIN) : $(MAIN).c object.c buffer.h
 	$(CC) $(CFLAGS) -o $@ $@.c $(LDLIBS)
@@ -21,15 +20,12 @@ $(MAIN) : $(MAIN).c object.c buffer.h
 	leg $< > $@.new
 	mv $@.new $@
 
-tidy : .FORCE
-	rm -f *~ $(MAIN)-test.out
-
 clean : .FORCE
 	rm -f $(MAIN) $(MAIN).c
 
-Rtree : .FORCE
+tidy : .FORCE
 	rm -f *~ $(MAIN)-tree.out
 
-spotless : clean tidy Rtree
+spotless : clean tidy
 
 .FORCE :