diff --git a/headers/os/kernel/OS.h b/headers/os/kernel/OS.h
index 6cdc536bc0..e631c75556 100644
--- a/headers/os/kernel/OS.h
+++ b/headers/os/kernel/OS.h
@@ -388,6 +388,7 @@ typedef enum cpu_types {
 	B_CPU_INTEL_PENTIUM_III				= 0x1067,
 	B_CPU_INTEL_PENTIUM_III_MODEL_8		= 0x1068,
 #ifdef OBOS_CPU_TYPES
+	B_CPU_INTEL_PENTIUM_M				= 0x1069,
 	B_CPU_INTEL_PENTIUM_III_MODEL_11 	= 0x106b,
 	B_CPU_INTEL_PENTIUM_IV				= 0x10f0,
 	B_CPU_INTEL_PENTIUM_IV_MODEL1,