diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog
index cef6986e1..fc2b40e27 100644
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@@ -1,3 +1,7 @@
+2013-02-28  Yufeng Zhang  <yufeng.zhang@arm.com>
+
+	* aarch64.h (AARCH64_FEATURE_CRC): New macro.
+
 2013-02-06  Sandra Loosemore  <sandra@codesourcery.com>
             Andrew Jenner <andrew@codesourcery.com>
 
diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h
index 941e67814..eaf3cda5d 100644
--- a/include/opcode/aarch64.h
+++ b/include/opcode/aarch64.h
@@ -37,6 +37,7 @@ typedef uint32_t aarch64_insn;
 #define AARCH64_FEATURE_CRYPTO	0x00010000	/* Crypto instructions.  */
 #define AARCH64_FEATURE_FP	0x00020000	/* FP instructions.  */
 #define AARCH64_FEATURE_SIMD	0x00040000	/* SIMD instructions.  */
+#define AARCH64_FEATURE_CRC	0x00080000	/* CRC instructions.  */
 
 /* Architectures are the sum of the base and extensions.  */
 #define AARCH64_ARCH_V8		AARCH64_FEATURE (AARCH64_FEATURE_V8, \