diff --git a/branches/follower/wiz810mj/src/lib/w5100.c b/branches/follower/wiz810mj/src/lib/w5100.c
index a5bf219..1e4b59d 100644
--- a/branches/follower/wiz810mj/src/lib/w5100.c
+++ b/branches/follower/wiz810mj/src/lib/w5100.c
@@ -255,7 +255,7 @@ uint16 wiz_read_buf(uint16 addr, uint8* buf,uint16 len)
 	return len;
 }
 
-
+#ifndef __ARDUINO__
 #if (__COMPILER_VERSION__ == __WINAVR_20050214__)
 static void iinchip_irq(void);
 
@@ -364,6 +364,7 @@ ISR(INT4_vect)
 #endif
 }
 #endif
+#endif // ifndef __ARDUINO__
 
 /**
 @brief	This function is for resetting of the iinchip. Initializes the iinchip to work in whether DIRECT or INDIRECT mode