diff --git a/Makefile b/Makefile
index 2812187..e16fdb4 100644
--- a/Makefile
+++ b/Makefile
@@ -100,6 +100,7 @@ sdl_keymap.cc: gen-sdl-keymap.pl
 
 .PHONY: dist
 dist: all
+	-rm -rf $@
 	-mkdir -p $@
 	svn export lib $@/lib
 	svn export doc $@/doc