diff --git a/build_mirror b/build_mirror
index 2da5ee5..20df035 100755
--- a/build_mirror
+++ b/build_mirror
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 IMAGE_FILE="$1"
-IMAGE_SIZE="400M"
+IMAGE_SIZE="1600M"
 CACHE_LOCATION="/mnt/cache"
 UNION_LOCATION="/mnt/union"