diff -r e57e2874fb2a -r d1420f5c5704 src/chess/pgn.c
--- a/src/chess/pgn.c	Mon Aug 24 16:13:51 2026 +0200
+++ b/src/chess/pgn.c	Tue Aug 25 18:35:18 2026 +0200
@@ -231,7 +231,7 @@
 
 int read_pgn(FILE *stream, GameState *gamestate) {
     fseek(stream, 0, SEEK_END);
-    long int size = ftell(stream);
+    size_t size = ftell(stream);
     fseek(stream, 0, SEEK_SET);
     char *data = malloc(size + 1);
     memset(data, 0, size + 1);