1 files changed, 2 insertions, 0 deletions

diff --git a/src/file.cpp b/src/file.cpp
index 9c8ae90..29d2805 100644
--- a/src/file.cpp
+++ b/src/file.cpp
@@ -200,8 +200,10 @@ int Bu::File::getPosixFlags( int iFlags )
                 iRet |= O_APPEND;
         if( (iFlags&Truncate) )
                 iRet |= O_TRUNC;
+#ifndef WIN32
         if( (iFlags&NonBlock) )
                 iRet |= O_NONBLOCK;
+#endif
         if( (iFlags&Exclusive) )
                 iRet |= O_EXCL;