diff --git a/Internet/DHCP/dhcp.h b/Internet/DHCP/dhcp.h
index 767b0c5..0615460 100644
--- a/Internet/DHCP/dhcp.h
+++ b/Internet/DHCP/dhcp.h
@@ -55,7 +55,7 @@ extern "C" {
  * @details If you want to display debug & processing message, Define _DHCP_DEBUG_ 
  * @note    If defined, it depends on <stdio.h>
  */
-#define _DHCP_DEBUG_
+// #define _DHCP_DEBUG_
 
 
 /* Retry to processing DHCP */