X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/8b02909988ff34f4a5a278386933fc6d75082ed3..9cd439a37dffbb386778d46335fa75c9a7cc7999:/logging.c

diff --git a/logging.c b/logging.c
index cb9c536b..ab765b3b 100644
--- a/logging.c
+++ b/logging.c
@@ -80,7 +80,7 @@ static void logfopen_callback(void *handle, int mode)
     if (mode == 0) {
 	ctx->state = L_ERROR;	       /* disable logging */
     } else {
-	fmode = (mode == 1 ? "a" : "w");
+	fmode = (mode == 1 ? "ab" : "wb");
 	ctx->lgfp = f_open(ctx->currlogfilename, fmode);
 	if (ctx->lgfp)
 	    ctx->state = L_OPEN;