diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index d5ff0f149..ef0a3b3bf 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,8 @@
+2002-05-30  Christopher January  <chris@atomice.net>
+
+	* include/ntdef.h (ANSI_STRING, PANSI_STRING, OEM_STRING, POEM_STRING):
+	Add missing typedefs.
+
 2002-05-28  Earnie Boyd  <earnie@users.sf.net>
 
 	* include/w32api.h: Increment version to 1.5
diff --git a/winsup/w32api/include/ntdef.h b/winsup/w32api/include/ntdef.h
index fcf8d4963..fd1074ca4 100644
--- a/winsup/w32api/include/ntdef.h
+++ b/winsup/w32api/include/ntdef.h
@@ -37,6 +37,10 @@ typedef struct _STRING {
   PCHAR  Buffer;
 } STRING, *PSTRING;
 #endif
+typedef STRING ANSI_STRING;
+typedef PSTRING PANSI_STRING;
+typedef STRING OEM_STRING;
+typedef PSTRING POEM_STRING;
 typedef LARGE_INTEGER PHYSICAL_ADDRESS, *PPHYSICAL_ADDRESS;
 typedef enum _SECTION_INHERIT {
   ViewShare = 1,