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Diffstat (limited to 'libtiff/tif_win32.c')
-rw-r--r--libtiff/tif_win32.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libtiff/tif_win32.c b/libtiff/tif_win32.c
index 8b476506..61ff724a 100644
--- a/libtiff/tif_win32.c
+++ b/libtiff/tif_win32.c
@@ -274,7 +274,7 @@ TIFF *TIFFOpenExt(const char *name, const char *mode, TIFFOpenOptions *opts)
dwMode = OPEN_EXISTING;
break;
case O_RDWR:
- dwMode = OPEN_ALWAYS;
+ dwMode = OPEN_EXISTING;
break;
case O_RDWR | O_CREAT:
dwMode = OPEN_ALWAYS;