1 files changed, 1 insertions, 0 deletions

diff --git a/ttd.h b/ttd.h
index 3846148de..d6656ee35 100644
--- a/ttd.h
+++ b/ttd.h
@@ -393,6 +393,7 @@ enum {
 	WC_INDUSTRY_DIRECTORY = 0x43,
 	WC_MESSAGE_HISTORY = 0x44,
 	WC_CHEATS = 0x45,
+	WC_PERFORMANCE_DETAIL = 0x46,
 };