diff --git a/kernel/tests.c b/kernel/tests.c
index 44316419..f0144ec6 100644
--- a/kernel/tests.c
+++ b/kernel/tests.c
@@ -154,6 +154,7 @@ void srv_on_conn(ServerEventArgs* e)
     kprintf("someone finally connected\n");
 }
 
+#define SHELLDEBUGPRINTF(x,...) kprintf(x,##__VA_ARGS__);
 
 void* server_task(void* e)
 {