diff --git a/ApfsLib/PList.h b/ApfsLib/PList.h
index 645df2d..a752059 100644
--- a/ApfsLib/PList.h
+++ b/ApfsLib/PList.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cstdint>
 #include <vector>
 #include <map>
 #include <memory>