diff --git a/util/cbfstool/cbfs.h b/util/cbfstool/cbfs.h
index 4a2a1ed..d77504a 100644
--- a/util/cbfstool/cbfs.h
+++ b/util/cbfstool/cbfs.h
@@ -72,6 +72,7 @@
 #define CBFS_ARCHITECTURE_AARCH64  0x0000aa64
 #define CBFS_ARCHITECTURE_MIPS     0x00000100
 #define CBFS_ARCHITECTURE_RISCV    0xc001d0de
+#define CBFS_ARCHITECTURE_PPC64    0x407570ff
 
 #define CBFS_FILE_MAGIC "LARCHIVE"