1 files changed, 1 insertions, 1 deletions
diff --git a/src/main.h b/src/main.h
index 329035dc5a..60ca318381 100644
--- a/src/main.h
+++ b/src/main.h
@@ -927,7 +927,7 @@ public:
         fflush(fileout);
         if (!IsInitialBlockDownload() || (nBestHeight+1) % 500 == 0)
         {
-#ifdef __WXMSW__
+#ifdef WIN32
             _commit(_fileno(fileout));
 #else
             fsync(fileno(fileout));