diff --git a/Makefile b/Makefile
index 03bfbef..85017d1 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@ root_overlay: root_overlay/root/key
 
 root_overlay/root/.ssh/authorized_keys: ~/.ssh/id_rsa.pub
 	mkdir -p `dirname $@`
-	cp ^< $@
+	cp $< $@
 
 buildroot/.config: config
 	ln -sf ../config $@