diff --git a/common/os/winerrno.h b/common/os/winerrno.h
index aebbdbe..052d4de 100644
--- a/common/os/winerrno.h
+++ b/common/os/winerrno.h
@@ -2,21 +2,9 @@
 /* Generated with:
 cat /usr/i686-pc-mingw32/sys-root/mingw/include/winerror.h \
  | awk '/#define WSAE.*WSABASE/{gsub("WSA", ""); print "#undef " $2 "\n#define " $2 " WSA" $2}' \
- | egrep -v '_QOS|PROVIDER|PROCTABLE'
+ | egrep -v 'EINTR|EBADF|EACCES|EFAULT|EINVAL|EMFILE|_QOS|PROVIDER|PROCTABLE'
 */
 
-#undef EINTR
-#define EINTR WSAEINTR
-#undef EBADF
-#define EBADF WSAEBADF
-#undef EACCES
-#define EACCES WSAEACCES
-#undef EFAULT
-#define EFAULT WSAEFAULT
-#undef EINVAL
-#define EINVAL WSAEINVAL
-#undef EMFILE
-#define EMFILE WSAEMFILE
 #undef EWOULDBLOCK
 #define EWOULDBLOCK WSAEWOULDBLOCK
 #undef EINPROGRESS
diff --git a/common/rdr/FdInStream.cxx b/common/rdr/FdInStream.cxx
index 22433a1..9f35c9f 100644
--- a/common/rdr/FdInStream.cxx
+++ b/common/rdr/FdInStream.cxx
@@ -22,6 +22,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <errno.h>
 #ifdef _WIN32
 #include <winsock2.h>
 #ifndef _WIN32_WCE
@@ -34,7 +35,6 @@
 #include <os/winerrno.h>
 #else
 #include <sys/types.h>
-#include <errno.h>
 #include <unistd.h>
 #include <sys/time.h>
 #endif
diff --git a/common/rdr/FdOutStream.cxx b/common/rdr/FdOutStream.cxx
index 83360d6..75131a6 100644
--- a/common/rdr/FdOutStream.cxx
+++ b/common/rdr/FdOutStream.cxx
@@ -23,6 +23,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <errno.h>
 #ifdef _WIN32
 #include <winsock2.h>
 #define write(s,b,l) send(s,(const char*)b,l,0)
@@ -31,7 +32,6 @@
 #include <os/winerrno.h>
 #else
 #include <sys/types.h>
-#include <errno.h>
 #include <unistd.h>
 #include <sys/time.h>
 #endif