diff --git a/sixel.c b/sixel.c
index c046145f..38a4a09f 100644
--- a/sixel.c
+++ b/sixel.c
@@ -1197,19 +1197,13 @@ sixel_unhook(struct terminal *term)
                 int row = term->grid->cursor.point.row;
 
                 /*
-                 * Position the text cursor based on the **upper**
+                 * Position the text cursor based on the **bottom**
                  * pixel, of the last sixel.
-                 *
-                 * In most cases, that'll end up being the very last
-                 * row of the sixel (which we're already at, thanks to
-                 * the linefeeds). But for some combinations of font
-                 * and image sizes, the final cursor position is
-                 * higher up.
                  */
                 const int sixel_row_height = 6 * term->sixel.pan;
                 const int sixel_rows = (image.original.height + sixel_row_height - 1) / sixel_row_height;
-                const int upper_pixel_last_sixel = (sixel_rows - 1) * sixel_row_height;
-                const int term_rows = (upper_pixel_last_sixel + term->cell_height - 1) / term->cell_height;
+                const int bottom_pixel_last_sixel = sixel_rows * sixel_row_height - 1;
+                const int term_rows = (bottom_pixel_last_sixel + term->cell_height - 1) / term->cell_height;
 
                 xassert(term_rows <= image.rows);