diff --git a/emulators/openmsx/files/patch-src_file_FileBase.hh b/emulators/openmsx/files/patch-src_file_FileBase.hh
new file mode 100644
index 000000000000..beddff253d38
--- /dev/null
+++ b/emulators/openmsx/files/patch-src_file_FileBase.hh
@@ -0,0 +1,10 @@
+--- src/file/FileBase.hh.orig	2022-09-09 08:27:57 UTC
++++ src/file/FileBase.hh
+@@ -4,6 +4,7 @@
+ #include "MemBuffer.hh"
+ #include "span.hh"
+ #include <cstdint>
++#include <ctime>
+ #include <string>
+ 
+ namespace openmsx {