diff --git a/include/zh_avr_i2c.h b/include/zh_avr_i2c.h
index 4f28fb6..4d67085 100644
--- a/include/zh_avr_i2c.h
+++ b/include/zh_avr_i2c.h
@@ -4,9 +4,9 @@
 #include "event_groups.h"
 #include "avr/io.h"
 #include "avr/interrupt.h"
-#include "stdlib.h"
-#include "stdint.h"
-#include "string.h"
+// #include "stdlib.h"
+// #include "stdint.h"
+// #include "string.h"
 #include "stdbool.h"
 #include "stdio.h"