diff --git a/src/cacaball.c b/src/cacaball.c
index b2f4fa3..7342665 100644
--- a/src/cacaball.c
+++ b/src/cacaball.c
@@ -13,13 +13,11 @@
 
 #include "config.h"
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#ifndef M_PI
-#   define M_PI 3.14159265358979323846
+#if !defined(__KERNEL__)
+#   include <math.h>
+#   ifndef M_PI
+#       define M_PI 3.14159265358979323846
+#   endif
 #endif
 
 #include "cucul.h"
diff --git a/src/cacamoir.c b/src/cacamoir.c
index 6bfa264..3903d64 100644
--- a/src/cacamoir.c
+++ b/src/cacamoir.c
@@ -13,8 +13,10 @@
 
 #include "config.h"
 
-#include <math.h>
-#include <string.h>
+#if !defined(__KERNEL__)
+#   include <math.h>
+#   include <string.h>
+#endif
 
 #include "cucul.h"
 #include "caca.h"
diff --git a/src/cacaplas.c b/src/cacaplas.c
index 02a552b..2277f62 100644
--- a/src/cacaplas.c
+++ b/src/cacaplas.c
@@ -14,10 +14,11 @@
 
 #include "config.h"
 
-#include <math.h>
-
-#ifndef M_PI
-#   define M_PI 3.14159265358979323846
+#if !defined(__KERNEL__)
+#   include <math.h>
+#   ifndef M_PI
+#       define M_PI 3.14159265358979323846
+#   endif
 #endif
 
 #include "cucul.h"