diff --git a/tests/emb6/main.c b/tests/emb6/main.c
index 06452f550..adeee367c 100644
--- a/tests/emb6/main.c
+++ b/tests/emb6/main.c
@@ -72,6 +72,8 @@ static int ifconfig(int argc, char **argv)
 
 static void *_emb6_thread(void *args)
 {
+    (void)args;
+
     emb6_process(500);  /* never stops */
     return NULL;
 }