diff --git a/src/pe.rs b/src/pe.rs
index 64ccf069..0d0456f6 100644
--- a/src/pe.rs
+++ b/src/pe.rs
@@ -368,6 +368,10 @@ pub const IMAGE_FILE_MACHINE_RISCV32: u16 = 0x5032;
 pub const IMAGE_FILE_MACHINE_RISCV64: u16 = 0x5064;
 /// RISCV128
 pub const IMAGE_FILE_MACHINE_RISCV128: u16 = 0x5128;
+/// ARM64X (Mixed ARM64 and ARM64EC)
+pub const IMAGE_FILE_MACHINE_ARM64X: u16 = 0xA64E;
+/// CHPE x86 ("Compiled Hybrid Portable Executable")
+pub const IMAGE_FILE_MACHINE_CHPE_X86: u16 = 0x3A64;
 
 //
 // Directory format.