X-Git-Url: http://nitlanguage.org

diff --git a/c_src/kernel_nit.h b/c_src/kernel_nit.h
index 3a09c9c..ba97c06 100644
--- a/c_src/kernel_nit.h
+++ b/c_src/kernel_nit.h
@@ -12,7 +12,9 @@
  */
 
 #include <stdlib.h>
+#include <errno.h>
 
 #define address_is_null(x) ((x)==NULL)
+#define sys_errno(x) (errno)
 
 #endif