1 files changed, 1 insertions, 0 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index 19e3efb2f3d..f98e7a9ac7e 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -20770,6 +20770,7 @@ maybe_produce_line_number (struct it *it)
           else
             max_lnum =
               this_line + it->w->desired_matrix->nrows - 1 - it->vpos;
+          max_lnum = max (1, max_lnum);
           it->lnum_width = log10 (max_lnum) + 1;
         }
       eassert (it->lnum_width > 0);