diff --git a/include/compiler.h b/include/compiler.h
index 8030bf6ed23bb9b371c2eb5bb289e031a5f23f93..23f4b834d8df0fdf3d821c2d52deb9aff56a3cce 100644
--- a/include/compiler.h
+++ b/include/compiler.h
@@ -25,8 +25,6 @@
 #include <stdio.h>
 #include <string.h>
 
-extern int errno;
-
 #if !defined(__WIN32__) && !defined(__MINGW32__)
 # include <sys/mman.h>
 #endif