diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index b76afbfc8..7ee738e94 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+Thu Nov  2 01:58:03 2000  Christopher Faylor <cgf@cygnus.com>
+
+	* ntdll.h: Remove IO_COUNTERS definition since it is now in winnt.h.
+
 Thu Nov  2 00:10:23 2000  Christopher Faylor <cgf@cygnus.com>
 
 	* pinfo.cc (EnumProcessesNT): New function.  Eliminates dependence on
diff --git a/winsup/cygwin/ntdll.h b/winsup/cygwin/ntdll.h
index 79a8c732c..551d39d66 100644
--- a/winsup/cygwin/ntdll.h
+++ b/winsup/cygwin/ntdll.h
@@ -48,16 +48,6 @@ typedef struct _VM_COUNTERS
   ULONG PeakPagefileUsage;
 } VM_COUNTERS, *PVM_COUNTERS;
 
-typedef struct _IO_COUNTERS
-{
-  LARGE_INTEGER ReadOperationCount;
-  LARGE_INTEGER WriteOperationCount;
-  LARGE_INTEGER OtherOperationCount;
-  LARGE_INTEGER ReadTransferCount;
-  LARGE_INTEGER WriteTransferCount;
-  LARGE_INTEGER OtherTransferCount;
-} IO_COUNTERS, *PIO_COUNTERS;
-
 typedef struct _CLIENT_ID
 {
   HANDLE UniqueProcess;