diff --git a/ocp-build/Makefile b/ocp-build/Makefile
index 7ef3154ba17..0a75c8f049d 100644
--- a/ocp-build/Makefile
+++ b/ocp-build/Makefile
@@ -3,9 +3,9 @@ PREFIX=/usr/local/
 ocp-build: primitives ocp-build.boot win32_c.c
 	awk '{ print "external "$$1": unit -> unit = \"" $$1 "\"" }' primitives > primitives.ml
 	ocamlc -o ocp-build.run -custom -make-runtime win32_c.c primitives.ml unix.cma  -cclib -lunix
-	cat ocp-build.run ocp-build.boot >> ocp-build
+	cat ocp-build.run ocp-build.boot > ocp-build
 	chmod +x ocp-build
-	./ocp-build -help >/dev/null
+	./ocp-build -help >/dev/null 2>&1
 
 install: ocp-build
 	cp ocp-build $(PREFIX)/bin/ocp-build
diff --git a/ocp-build/ocp-build.boot b/ocp-build/ocp-build.boot
index 817aa9c5b5e..fe5fa99b2e2 100755
Binary files a/ocp-build/ocp-build.boot and b/ocp-build/ocp-build.boot differ