diff --git a/src/mux_fcgi.c b/src/mux_fcgi.c
index f6a2f7c14..1db86460d 100644
--- a/src/mux_fcgi.c
+++ b/src/mux_fcgi.c
@@ -852,6 +852,8 @@ static void fcgi_release(struct fcgi_conn *fconn)
 		if (conn && fconn->wait_event.events != 0)
 			conn->xprt->unsubscribe(conn, conn->xprt_ctx, fconn->wait_event.events,
 						&fconn->wait_event);
+
+		pool_free(pool_head_fcgi_conn, fconn);
 	}
 
 	if (conn) {