diff --git a/base/gdevprn.c b/base/gdevprn.c
index 459846a..84802d9 100644
--- a/base/gdevprn.c
+++ b/base/gdevprn.c
@@ -1331,6 +1331,7 @@ gdev_prn_open_printer_seekable(gx_device *pdev, bool binary_mode,
               && !IS_LIBCTX_STDERR(pdev->memory ,ppdev->file)) {
 
                 code = gx_device_close_output_file(pdev, ppdev->fname, ppdev->file);
+                ppdev->file = NULL;
                 if (code < 0)
                     return code;
             }