diff --git a/src/lib/evil/sys/mman.h b/src/lib/evil/sys/mman.h
index c49fbf6756..3c63536a99 100644
--- a/src/lib/evil/sys/mman.h
+++ b/src/lib/evil/sys/mman.h
@@ -1,6 +1,8 @@
 #ifndef __EVIL_SYS_MMAN_H__
 #define __EVIL_SYS_MMAN_H__
 
+#include <sys/types.h>
+
 #include <evil_macro.h>