diff --git a/apps/px4io/i2c.c b/apps/px4io/i2c.c
index 037c64522e..4e95dd5831 100644
--- a/apps/px4io/i2c.c
+++ b/apps/px4io/i2c.c
@@ -44,7 +44,7 @@
 #include <stm32_i2c.h>
 #include <stm32_dma.h>
 
-#define DEBUG
+//#define DEBUG
 #include "px4io.h"
 
 /*