diff --git a/apps/px4io/px4io.h b/apps/px4io/px4io.h
index f50e29252a..0a3a4448c6 100644
--- a/apps/px4io/px4io.h
+++ b/apps/px4io/px4io.h
@@ -56,10 +56,11 @@
  * Debug logging
  */
 
-#if 1
-# define debug(fmt, ...)	lib_lowprintf(fmt "\n", ##args)
+#ifdef DEBUG
+# include <debug.h>
+# define debug(fmt, args...)	lib_lowprintf(fmt "\n", ##args)
 #else
-# define debug(fmt, ...)	do {} while(0)
+# define debug(fmt, args...)	do {} while(0)
 #endif
 
 /*