diff --git a/run/moros-fuse.py b/run/moros-fuse.py
index b6faecb9..fa76e812 100644
--- a/run/moros-fuse.py
+++ b/run/moros-fuse.py
@@ -9,7 +9,7 @@
 from threading import Lock
 
 BLOCK_SIZE = 512
-SUPERBLOCK_ADDR = 4096 * BLOCK_SIZE
+SUPERBLOCK_ADDR = 2 * 4096 * BLOCK_SIZE
 BITMAP_ADDR = SUPERBLOCK_ADDR + 2 * BLOCK_SIZE
 ENTRY_SIZE = (1 + 4 + 4 + 8 + 1)
 
diff --git a/src/lib.rs b/src/lib.rs
index 3c26ba5f..fa0c9983 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,7 +19,7 @@ pub mod usr;
 
 use bootloader::BootInfo;
 
-const KERNEL_SIZE: usize = 2 << 20; // 2 MB
+const KERNEL_SIZE: usize = 4 << 20; // 2 MB
 
 pub fn init(boot_info: &'static BootInfo) {
     sys::vga::init();