diff --git a/libntfs/rich.c b/libntfs/rich.c
index 42cc0022..71f5652f 100644
--- a/libntfs/rich.c
+++ b/libntfs/rich.c
@@ -29,6 +29,10 @@
 #include <stdlib.h>
 #endif
 
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+
 #include "rich.h"
 #include "layout.h"
 #include "logging.h"