diff --git a/glnx-backports.c b/glnx-backports.c
index 8b6bc4f0..d5b68ad0 100644
--- a/glnx-backports.c
+++ b/glnx-backports.c
@@ -36,6 +36,7 @@
 #include "libglnx-config.h"
 
 #include "glnx-backports.h"
+#include "glnx-missing.h"
 
 #include <dirent.h>
 #include <errno.h>