diff --git a/usr.bin/file/config.h b/usr.bin/file/config.h
index a168a59b690..693e0ab9fcf 100644
--- a/usr.bin/file/config.h
+++ b/usr.bin/file/config.h
@@ -85,3 +85,4 @@
 /* Version number of package */
 #define VERSION "3.36"
 
+#include <fcntl.h>