1 files changed, 1 insertions, 1 deletions
diff --git a/control.c b/control.c
index efcbc0ff..359d0e78 100644
--- a/control.c
+++ b/control.c
@@ -386,7 +386,7 @@ control_pause_pane(struct client *c, struct window_pane *wp)
 }
 
 /* Write a line. */
-static void
+static void printflike(2, 0)
 control_vwrite(struct client *c, const char *fmt, va_list ap)
 {
 	struct control_state	*cs = c->control_state;