diff --git a/include/errno.h b/include/errno.h
index baa2e19..cc8f0ce 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -24,6 +24,7 @@ int *__error();
 #define ENFILE		0x1BAD000F
 #define ETIMEDOUT	0x1BAD0010
 #define EACCES		0x1BAD0011
+#define EPERM		0x1BAD0012
 
 #define EAFNOSUPPORT	0x1BAD0020
 #define ENOPROTOOPT	0x1BAD0021