diff --git a/api.c b/api.c
index 77ab5c24..3879686d 100644
--- a/api.c
+++ b/api.c
@@ -2029,7 +2029,7 @@ static void send_result(SOCKETTYPE c, bool isjson)
 
 }
 
-static void tidyup(void *arg)
+static void tidyup(__maybe_unused void *arg)
 {
 	bye = 1;