diff --git a/Python/compile.c b/Python/compile.c
index d29e48c..1ff0859 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -3942,7 +3942,7 @@
     freevars = dict_keys_inorder(c->u->u_freevars, PyTuple_Size(cellvars));
     if (!freevars)
         goto error;
-    filename = PyUnicode_FromString(c->c_filename);
+    filename = PyUnicode_DecodeFSDefault(c->c_filename);
     if (!filename)
         goto error;