diff --git a/include/ChangeLog b/include/ChangeLog
index 9ba0423b6..db4665407 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,8 @@
+2010-01-13  Joel Brobecker  <brobecker@adacore.com>
+
+	Add new DW_AT_use_GNAT_descriptive_type CU attribute.
+	* dwarf2.h (dwarf_attribute): Add DW_AT_use_GNAT_descriptive_type.
+
 2010-01-11  Tristan Gingold  <gingold@adacore.com>
 
 	* demangle.h (ada_demangle): Add prototype.
diff --git a/include/dwarf2.h b/include/dwarf2.h
index a001ef325..303af70be 100644
--- a/include/dwarf2.h
+++ b/include/dwarf2.h
@@ -428,6 +428,7 @@ enum dwarf_attribute
     /* GNAT extensions.  */
     /* GNAT descriptive type.
        See http://gcc.gnu.org/wiki/DW_AT_GNAT_descriptive_type .  */
+    DW_AT_use_GNAT_descriptive_type = 0x2301,
     DW_AT_GNAT_descriptive_type	= 0x2302,
     /* UPC extension.  */
     DW_AT_upc_threads_scaled = 0x3210,