diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index 7585757d74..21de3a663e 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,7 @@
+Wed Mar 16 08:20:19 1994  Jim Kingdon  (kingdon@lioth.cygnus.com)
+
+	* stabs.texinfo (Type Descriptors): Add 'Y' type descriptor.
+
 Tue Mar 15 08:43:02 1994  Jim Kingdon  (kingdon@lioth.cygnus.com)
 
 	* gdbint.texinfo (Host Conditionals, Target Conditionals): Remove
diff --git a/gdb/doc/stabs.texinfo b/gdb/doc/stabs.texinfo
index a9095c5aa8..ffad679114 100644
--- a/gdb/doc/stabs.texinfo
+++ b/gdb/doc/stabs.texinfo
@@ -3484,6 +3484,9 @@ Wide character; see @ref{Builtin Type Descriptors}.
 @item x
 Cross-reference; see @ref{Cross-References}.
 
+@item Y
+Used by IBM's xlC C++ compiler (for structures, I think).
+
 @item z
 gstring; see @ref{Strings}.
 @end table