diff --git a/src/saveload/signs_sl.cpp b/src/saveload/signs_sl.cpp
--- a/src/saveload/signs_sl.cpp
+++ b/src/saveload/signs_sl.cpp
@@ -62,6 +62,8 @@ static void Load_SIGN()
 }
 
 /** Chunk handlers related to signs. */
-extern const ChunkHandler _sign_chunk_handlers[] = {
-	{ 'SIGN', Save_SIGN, Load_SIGN, nullptr, nullptr, CH_ARRAY | CH_LAST},
+static const ChunkHandler sign_chunk_handlers[] = {
+	{ 'SIGN', Save_SIGN, Load_SIGN, nullptr, nullptr, CH_ARRAY },
 };
+
+extern const ChunkHandlerTable _sign_chunk_handlers(sign_chunk_handlers);