diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index ddb6f4568..aa46326fc 100644
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,8 @@
+2002-01-21  Robert Collins  <rbtcollins@hotmail.com>
+
+	* include/winnt.h: Add missing MEM_ defines, and convert existing to 
+	hex for readability.
+
 2002-01-14  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	* include/winnt.h (FILE_ATTRIBUTE_ENCRYPTED): Correct constant.
diff --git a/winsup/w32api/include/winnt.h b/winsup/w32api/include/winnt.h
index c91f16f05..6c6a49299 100644
--- a/winsup/w32api/include/winnt.h
+++ b/winsup/w32api/include/winnt.h
@@ -618,14 +618,17 @@ typedef BYTE BOOLEAN,*PBOOLEAN;
 #define PAGE_GUARD 256
 #define PAGE_NOACCESS 1
 #define PAGE_NOCACHE 512
-#define MEM_COMMIT 4096
-#define MEM_FREE 65536
-#define MEM_RESERVE 8192
+#define MEM_COMMIT           0x1000
+#define MEM_RESERVE          0x2000
+#define MEM_DECOMMIT         0x4000
+#define MEM_RELEASE          0x8000
+#define MEM_FREE            0x10000
+#define MEM_PRIVATE         0x20000
+#define MEM_MAPPED          0x40000
+#define MEM_RESET           0x80000
+#define MEM_TOP_DOWN       0x100000
+#define MEM_4MB_PAGES    0x80000000
 #define MEM_IMAGE 16777216
-#define MEM_MAPPED 262144
-#define MEM_PRIVATE 131072
-#define MEM_DECOMMIT 16384
-#define MEM_RELEASE 32768
 #define SEC_FILE 0x800000
 #define SEC_IMAGE 0x1000000
 #define SEC_VLM 0x2000000