diff -r e7a73ee62d2f -r b9569cc0644f oldloader.c
--- a/oldloader.c	Fri Feb 04 14:24:23 2005 +0000
+++ b/oldloader.c	Fri Feb 04 14:45:32 2005 +0000
@@ -1100,6 +1100,9 @@
 		if (o->text == 0)
 			continue;
 
+		if (!AddBlockIfNeeded(&_sign_pool, i))
+			error("Signs: failed loading savegame: too many signs");
+
 		n = GetSign(i);
 
 		n->str = o->text;