1 files changed, 1 insertions, 0 deletions
diff --git a/tmux.h b/tmux.h
index bdbdf405..15bc04dc 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1064,6 +1064,7 @@ struct client {
 	struct imsgbuf	 ibuf;
 
 	struct timeval	 creation_time;
+	struct timeval	 activity_time;
 
 	struct environ	 environ;