diff --git a/Python/import.c b/Python/import.c
index 8575293..94363de 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -3483,7 +3483,7 @@
         PyErr_Format(PyExc_SystemError, "path buffer too short");
         return NULL;
     }
-    return PyUnicode_FromString(buf);
+    return PyUnicode_DecodeFSDefault(buf);
 }
 
 PyDoc_STRVAR(doc_cache_from_source,