diff --git a/lib/message/mu-mime-object.cc b/lib/message/mu-mime-object.cc
index 17b56f0a..e5879de4 100644
--- a/lib/message/mu-mime-object.cc
+++ b/lib/message/mu-mime-object.cc
@@ -24,6 +24,7 @@
 #include <mutex>
 #include <regex>
 #include <fcntl.h>
+#include <sys/stat.h>
 #include <errno.h>
 
 using namespace Mu;