Index: aoc2024.c
==================================================================
--- aoc2024.c
+++ aoc2024.c
@@ -66,11 +66,11 @@
             data[linearize2d(size, (unsigned)row_pos, (unsigned)col_pos)] = '1';
             bool looping = false;
             while (!looping && validpos(size, row_pos + deltarow, col_pos + deltacol)) {
                 switch (data[linearize2d(size, (unsigned)(row_pos+deltarow), (unsigned)(col_pos+deltacol))]) {
                     default: puts("stepped on default"); exit(EXIT_FAILURE);
-                    case '#': if (data[linearize2d(size, (unsigned)(row_pos), (unsigned)(col_pos))] == '8') looping = true;
+                    case '#': if (data[linearize2d(size, (unsigned)(row_pos), (unsigned)(col_pos))] == '4') looping = true;
                               rightturn(&deltarow, &deltacol);
                               break;
                     case '4': looping = true; break;
                     case '.': data[linearize2d(size, (unsigned)(row_pos+deltarow), (unsigned)(col_pos+deltacol))] = '0';
                               /*fallthrough*/