diff --git a/config.mk b/config.mk
index c773ec8f8..57d316344 100644
--- a/config.mk
+++ b/config.mk
@@ -10,7 +10,7 @@ IGNORE_MIRROR:=0
 endif
 
 ifndef LOCAL_MIRROR
-LOCAL_MIRROR:=./mirror
+LOCAL_MIRROR:=$(BUILD_DIR)/../mirror
 endif
 
 ifndef GOLDEN_MIRROR