1 files changed, 1 insertions, 0 deletions

diff --git a/src/w32.h b/src/w32.h
index ecc986269fb..acbadd8b57c 100644
--- a/src/w32.h
+++ b/src/w32.h
@@ -93,6 +93,7 @@ extern filedesc fd_info [ MAXDESC ];
 /* fd_info flag definitions */
 #define FILE_READ               0x0001
 #define FILE_WRITE              0x0002
+#define FILE_LISTEN             0x0004
 #define FILE_BINARY             0x0010
 #define FILE_LAST_CR            0x0020
 #define FILE_AT_EOF             0x0040