1 files changed, 3 insertions, 0 deletions
diff --git a/src/H5FDstdio.c b/src/H5FDstdio.c
index b241f4d..6f13555 100644
--- a/src/H5FDstdio.c
+++ b/src/H5FDstdio.c
@@ -1023,6 +1023,9 @@ H5FD_stdio_truncate(H5FD_t *_file, hid_t dxpl_id, hbool_t closing)
             HFILE filehandle;   /* Windows file handle */
             LARGE_INTEGER li;   /* 64-bit integer for SetFilePointer() call */
 
+            /* Reset seek offset to beginning of file, so that file isn't re-extended later */
+            rewind(file->fp);
+
             /* Map the posix file handle to a Windows file handle */
             filehandle = _get_osfhandle(fd);