diff --git a/io/sys/darwin/path.c b/io/sys/darwin/path.c
index 42d3d35..c8f50f9 100644
--- a/io/sys/darwin/path.c
+++ b/io/sys/darwin/path.c
@@ -379,7 +379,7 @@ void path_to_string(const fx_object *obj, fx_stream *out)
 {
 	struct fx_path_p *path = fx_object_get_private(obj, FX_TYPE_PATH);
 
-	fx_stream_write_string(out, fx_string_ptr(path->p_pathstr), NULL);
+	fx_stream_write_cstr(out, fx_string_ptr(path->p_pathstr), NULL);
 }
 
 /*** CLASS DEFINITION *********************************************************/