diff --git a/socket-handler.c b/socket-handler.c
index 42690be..7da6818 100644
--- a/socket-handler.c
+++ b/socket-handler.c
@@ -211,7 +211,7 @@
 	return RINGBUFFER_POLL_OK;
 }
 
-static enum poller_ret client_timeout(struct handler *handler, void *data)
+static enum poller_ret client_timeout(struct handler *handler __attribute__((unused)), void *data)
 {
 	struct client *client = data;
 	int rc = 0;