diff --git a/include/ChangeLog b/include/ChangeLog
index 6742d24c9..8f857749e 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,11 +1,16 @@
+2009-06-18  Nick Clifton  <nickc@redhat.com>
+
+	* dis-asm.h (USER_SPECIFIED_MACHINE_TYPE): New value for the flags
+	field of struct disassemble_info.
+
 2009-06-09  Ian Lance Taylor  <ian@airs.com>
 
 	* ansidecl.h (ATTRIBUTE_UNUSED_LABEL): Define for C++.
 
 2009-06-15  Nick Clifton  <nickc@redhat.com>
 
-	* dis-asm.h (struct disassemble_info): New value for the flags
-	field.
+	* dis-asm.h (DISASSEMBLE_DATA): New value for the flags field of
+	struct disassemble_info.
 
 2009-06-02  Ian Lance Taylor  <iant@google.com>
 
diff --git a/include/dis-asm.h b/include/dis-asm.h
index 3872f8b2d..b7949c177 100644
--- a/include/dis-asm.h
+++ b/include/dis-asm.h
@@ -113,6 +113,9 @@ typedef struct disassemble_info
 #define INSN_HAS_RELOC	 (1 << 31)
   /* Set if the user has requested the disassembly of data as well as code.  */
 #define DISASSEMBLE_DATA (1 << 30)
+  /* Set if the user has specifically set the machine type encoded in the
+     mach field of this structure.  */
+#define USER_SPECIFIED_MACHINE_TYPE (1 << 29)
 
   /* Use internally by the target specific disassembly code.  */
   void *private_data;