diff --git a/disk/part.c b/disk/part.c
index 43485c9148b0f404e91cb0f45f9a3c76b2267578..8c65cdb60dda51181c305b8e6db70fae9e29d93b 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -511,6 +511,7 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
 	int part;
 	disk_partition_t tmpinfo;
 
+#ifdef CONFIG_SANDBOX
 	/*
 	 * Special-case a pseudo block device "hostfs", to allow access to the
 	 * host's own filesystem.
@@ -529,6 +530,7 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
 
 		return 0;
 	}
+#endif
 
 	/* If no dev_part_str, use bootdevice environment variable */
 	if (!dev_part_str || !strlen(dev_part_str) ||