let 'make release' properly clean up object files in regress/
diff --git a/Makefile b/Makefile
index c8261f7..b95475a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
SUBDIR = libexec got tog
.PHONY=release dist
-.if make(regress) || make(obj) || make(clean)
+.if make(regress) || make(obj) || make(clean) || make(release)
SUBDIR += regress
.endif