diff --git a/library/havege.c b/library/havege.c
index d3981d9..499fe4f 100644
--- a/library/havege.c
+++ b/library/havege.c
@@ -30,13 +30,13 @@
  *  Contact: seznec(at)irisa_dot_fr - orocheco(at)irisa_dot_fr
  */
 
-#include <string.h>
-#include <time.h>
-
 #include "polarssl/config.h"
 
 #if defined(POLARSSL_HAVEGE_C)
 
+#include <string.h>
+#include <time.h>
+
 #include "polarssl/havege.h"
 #include "polarssl/timing.h"