diff --git a/ncal.c b/ncal.c
index 6bf619a..8bd7dc2 100644
--- a/ncal.c
+++ b/ncal.c
@@ -917,7 +917,7 @@ printmonthr(int line, int col, int y, int m, int jd_flag, int highlightdate)
 					dt.d = j - jan1 + 1;
 				else
 					sdater(j, &dt);
-				if (j == highlightdate && isatty(STDOUT_FILENO)) {
+				if (j == highlightdate) {
 					mvaddstr(line+i, col+k-1, " ");
 					attron(A_REVERSE);
 					printw("%-.*s", dw-1, ds + dt.d * dw + 1);