diff --git a/screen-write.c b/screen-write.c
index 34dce95e..348065c6 100644
--- a/screen-write.c
+++ b/screen-write.c
@@ -1053,7 +1053,7 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
 	 * Move the cursor. If not wrapping, stick at the last character and
 	 * replace it.
 	 */
-	last = !!(s->mode & MODE_WRAP);
+	last = !(s->mode & MODE_WRAP);
 	if (s->cx <= screen_size_x(s) - last - width)
 		s->cx += width;
 	else