--- src/lib/MSPUBMetaData.h.orig	2021-02-22 20:49:29 UTC
+++ src/lib/MSPUBMetaData.h
@@ -13,6 +13,7 @@
 #include <map>
 #include <utility>
 #include <vector>
+#include <sys/types.h>
 
 #include <librevenge/librevenge.h>