diff --git a/programs/aarch64/return-42/00_elf_header.txt b/programs/aarch64/return-42/00_elf_header.txt
index d0f1b9e..4645d02 100644
--- a/programs/aarch64/return-42/00_elf_header.txt
+++ b/programs/aarch64/return-42/00_elf_header.txt
@@ -33,8 +33,8 @@
 # File Type - e_type - Executable binary
 02 00
 
-# Architecture - e_machine - AMD 64 Architecture
-3e 00
+# Architecture - e_machine - Aarch 64 Architecture
+b7 00
 
 # Version Spec - e_version - Version 1
 01 00 00 00
@@ -48,8 +48,8 @@
 40 00 00 00 00 00 00 00
 
 # Section Header Table Offset - e_shoff
-# 64 + 56 + 16 + 16
-98 00 00 00 00 00 00 00
+# 64 + 56 + 12 + 16
+94 00 00 00 00 00 00 00
 
 # Processor Flags - e_flags - No flags set
 00 00 00 00
diff --git a/programs/aarch64/return-42/01_program_header.txt b/programs/aarch64/return-42/01_program_header.txt
index 5aa194b..b53225e 100644
--- a/programs/aarch64/return-42/01_program_header.txt
+++ b/programs/aarch64/return-42/01_program_header.txt
@@ -24,12 +24,12 @@
 # p_filesz - size of the file to load
 # This is to the end of the .text section, which for us is just
 # the program size, ELF header, and program header
-# so 64 + 56 + 16 = 136 = 0x88
-88 00 00 00 00 00 00 00
+# so 64 + 56 + 12 = 132 = 0x84
+84 00 00 00 00 00 00 00
 
 # p_memsz - size of the file once loaded into memory
 # For us this is the same as above for now
-88 00 00 00 00 00 00 00
+84 00 00 00 00 00 00 00
 
 # p_align - something to do with alignment, p_offset and p_vaddr
 # need more reading on that
diff --git a/programs/aarch64/return-42/02_program_code.txt b/programs/aarch64/return-42/02_program_code.txt
index 06e96ef..70a1824 100644
--- a/programs/aarch64/return-42/02_program_code.txt
+++ b/programs/aarch64/return-42/02_program_code.txt
@@ -1,12 +1,14 @@
-# Program Code
+# Program Code - 12 bytes
 # ============
 
-# mov $60, %rax
-48 c7 c0 3c 00 00 00
+# mov w8 #93
+# d2 80 0b a8
+a8 0b 80 d2
 
-# mov $42, %rdi
-48 c7 c7 2a 00 00 00
-
-# syscall
-0f 05
+# mov x0 #42
+# d2 80 05 40
+40 05 80 d2
 
+# svc #0
+# d4 00 00 01
+01 00 00 d4
diff --git a/programs/aarch64/return-42/05_section_header_program.txt b/programs/aarch64/return-42/05_section_header_program.txt
index 028fb23..3a8ce20 100644
--- a/programs/aarch64/return-42/05_section_header_program.txt
+++ b/programs/aarch64/return-42/05_section_header_program.txt
@@ -16,7 +16,7 @@
 78 00 00 00 00 00 00 00
 
 # size of this section in the file: 16 bytes
-10 00 00 00 00 00 00 00
+0c 00 00 00 00 00 00 00
 
 # sh_link -- not used for this section
 00 00 00 00 00 00 00 00