diff --git a/Makefile.dev b/Makefile.dev
index 2618453..0e16266 100644
--- a/Makefile.dev
+++ b/Makefile.dev
@@ -35,7 +35,8 @@ release: clean
 	automake --add-missing
 	./configure
 	make distcheck
-	cp $(TARGET)-*.tar.gz build
+	mkdir -p build
+	cp $(TARGET)-*.tar.gz build/
 	@rm -rf \
 		autom4te.cache \
 		aclocal.m4 \