diff --git a/hbasm/src/lib.rs b/hbasm/src/lib.rs
index 0b301b9..f7690c0 100644
--- a/hbasm/src/lib.rs
+++ b/hbasm/src/lib.rs
@@ -72,7 +72,7 @@ impl Assembler {
     /// Why 12 bytes? That's the size of largest instruction parameter part.
     pub fn finalise(&mut self) {
         self.buf.extend([0; 12]);
-        self.buf[0..3].copy_from_slice(&[0xAB, 0x1E, 0x0B]);
+        self.buf[0..4].copy_from_slice(&0xAB1E0B_u32.to_le_bytes());
     }
 }
 
diff --git a/hbbytecode/src/gen_valider.rs b/hbbytecode/src/gen_valider.rs
index c9d9ab7..d1e078f 100644
--- a/hbbytecode/src/gen_valider.rs
+++ b/hbbytecode/src/gen_valider.rs
@@ -40,7 +40,7 @@ macro_rules! gen_valider {
             /// sound to execute.
             pub fn validate(mut program: &[u8]) -> Result<(), Error> {
                 // Validate magic
-                if program.get(0..3) != Some(&[0xAB, 0x1E, 0x0B]) {
+                if program.get(0..4) != Some(&0xAB1E0B_u32.to_le_bytes()) {
                     return Err(Error {
                         kind: ErrorKind::MissingMagic,
                         index: 0,
@@ -67,7 +67,7 @@ macro_rules! gen_valider {
                 }
 
                 let start = program;
-                program = &program[3..];
+                program = &program[4..];
                 loop {
                     use crate::opcode::*;
                     program = match program {
diff --git a/hbvm/src/lib.rs b/hbvm/src/lib.rs
index 67b1dda..5c1021a 100644
--- a/hbvm/src/lib.rs
+++ b/hbvm/src/lib.rs
@@ -73,7 +73,7 @@ impl<'a, PfHandler: HandlePageFault, const TIMER_QUOTIENT: usize>
             pfhandler: traph,
             pc: 0,
             program_len: program.len() - 12,
-            program: &program[3..],
+            program: &program[4..],
             timer: 0,
             copier: None,
         }