diff --git a/b2/Makefile b/b2/Makefile
index 0e94a28..47fa068 100644
--- a/b2/Makefile
+++ b/b2/Makefile
@@ -44,7 +44,7 @@ else
 	DEPEND	= $(DEPEND_quiet)
 endif
 
-.PHONY:	all clean
+.PHONY:	all clean spotless
 
 all:		boom
 
@@ -76,3 +76,6 @@ y.tab.o:	y.tab.c
 clean:
 		rm -f $(OBJS) $(OBJS:.o=.d)
 		rm -f lex.yy.c y.tab.c y.tab.h y.output
+
+spotless:	clean
+		rm -f boom