diff --git a/kernel/atommutex.c b/kernel/atommutex.c
index 6663e6e..e3543f3 100755
--- a/kernel/atommutex.c
+++ b/kernel/atommutex.c
@@ -100,9 +100,6 @@
  *
  */
 
-#ifndef STAND_ALONE
-#include <stdio.h>
-#endif
 
 #include "atom.h"
 #include "atommutex.h"
diff --git a/kernel/atomqueue.c b/kernel/atomqueue.c
index 97880a3..8ab0965 100755
--- a/kernel/atomqueue.c
+++ b/kernel/atomqueue.c
@@ -90,9 +90,6 @@
  *
  */
  
-#ifndef STAND_ALONE
-#include <stdio.h>
-#endif
 
 #include <string.h>
 
diff --git a/kernel/atomsem.c b/kernel/atomsem.c
index 8cd0567..db1c2be 100755
--- a/kernel/atomsem.c
+++ b/kernel/atomsem.c
@@ -87,9 +87,6 @@
  *
  */
 
-#ifndef STAND_ALONE
-#include <stdio.h>
-#endif
 
 #include "atom.h"
 #include "atomsem.h"
diff --git a/kernel/atomtimer.c b/kernel/atomtimer.c
index cf3a4e7..3693295 100755
--- a/kernel/atomtimer.c
+++ b/kernel/atomtimer.c
@@ -66,9 +66,6 @@
  *
  */
 
-#ifndef STAND_ALONE
-#include <stdio.h>
-#endif
 
 #include "atom.h"