1 files changed, 1 insertions, 0 deletions
diff --git a/ttd.h b/ttd.h
index 35bcc6354..45880270f 100644
--- a/ttd.h
+++ b/ttd.h
@@ -439,6 +439,7 @@ enum {
 	WC_CLIENT_LIST = 0x49,
 	WC_NETWORK_STATUS_WINDOW = 0x4A,
 	WC_CUSTOM_CURRENCY = 0x4B,
+	WC_REPLACE_VEHICLE = 0x4C,
 };