diff --git a/test/fd/intf.cpp b/test/fd/intf.cpp
new file mode 100644
index 0000000..d4cc8c2
--- /dev/null
+++ b/test/fd/intf.cpp
@@ -0,0 +1,4 @@
+#include <stdplus/fd/intf.hpp>
+int main(int, char*[])
+{
+}