diff --git a/src/openboardview/FileFormats/FZFile.h b/src/openboardview/FileFormats/FZFile.h
index 3b7c87db..25f56a39 100644
--- a/src/openboardview/FileFormats/FZFile.h
+++ b/src/openboardview/FileFormats/FZFile.h
@@ -2,6 +2,7 @@
 
 #include "BRDFileBase.h"
 #include <array>
+#include <cstdint>
 
 #undef READ_INT
 #undef READ_UINT