diff --git a/include/ircd/fs/fd.h b/include/ircd/fs/fd.h
index b9715ef71..6c0316563 100644
--- a/include/ircd/fs/fd.h
+++ b/include/ircd/fs/fd.h
@@ -34,6 +34,7 @@ struct ircd::fs::fd
 	operator bool() const;
 	bool operator!() const;
 
+	explicit fd(const int &);
 	fd(const string_view &path, const opts &);
 	fd(const string_view &path);
 	fd() = default;
diff --git a/ircd/fs.cc b/ircd/fs.cc
index efd439af2..6c3fe76f4 100644
--- a/ircd/fs.cc
+++ b/ircd/fs.cc
@@ -1252,6 +1252,11 @@ ircd::fs::fd::opts::opts(const std::ios::openmode &mode)
 // fd::fd
 //
 
+ircd::fs::fd::fd(const int &fdno)
+:fdno{fdno}
+{
+}
+
 ircd::fs::fd::fd(const string_view &path)
 :fd{path, opts{}}
 {