diff --git a/libmaxsi/decl/errno_decl.h b/libmaxsi/decl/errno_decl.h
index 5ff1b35a..777a00a0 100644
--- a/libmaxsi/decl/errno_decl.h
+++ b/libmaxsi/decl/errno_decl.h
@@ -2,5 +2,6 @@
 #define _ERRNO_DECL
 
 extern volatile int errno;
+#define errno errno
 
 #endif