diff --git a/tmux.h b/tmux.h
index 21262af2f..048d6c43f 100644
--- a/tmux.h
+++ b/tmux.h
@@ -2303,7 +2303,7 @@ struct client {
 #define CLIENT_ASSUMEPASTING 0x2000000000ULL
 #define CLIENT_WRITE_ACK 0x4000000000ULL
 #define CLIENT_NO_DETACH_ON_DESTROY 0x8000000000ULL
-#define CLIENT_CONTROL_DISCARD 0x1000000000ULL
+#define CLIENT_CONTROL_DISCARD 0x10000000000ULL
 #define CLIENT_ALLREDRAWFLAGS		\
 	(CLIENT_REDRAWWINDOW|		\
 	 CLIENT_REDRAWSTATUS|		\