diff --git a/clients/synth/lash.c b/clients/synth/lash.c
index 03717ae..1c5d321 100644
--- a/clients/synth/lash.c
+++ b/clients/synth/lash.c
@@ -23,6 +23,8 @@
 #include "config.h"
 
 #include <unistd.h>
+#include <string.h>
+#include <stdio.h>
 
 #include <lash/lash.h>
 
