diff --git a/Modules/_testcapi/file.c b/Modules/_testcapi/file.c
index 634563f6ea12cb..762bdb2ff7fb73 100644
--- a/Modules/_testcapi/file.c
+++ b/Modules/_testcapi/file.c
@@ -2,7 +2,14 @@
 #include "util.h"
 
 
+static PyObject *
+test_file_from_fd(PyObject *self, PyObject *args)
+{
+
+}
+
 static PyMethodDef test_methods[] = {
+    {"", test_file_from_fd, METH_VARARGS},
     {NULL},
 };