diff --git a/src/fuse_open.cpp b/src/fuse_open.cpp
index ce014132..3d2bac73 100644
--- a/src/fuse_open.cpp
+++ b/src/fuse_open.cpp
@@ -226,7 +226,8 @@ namespace l
   static
   int
   passthrough(const fuse_context *fc_,
-              fuse_file_info_t   *ffi_)
+              fuse_file_info_t   *ffi_
+              PTInfo             *pti_)
   {
     int backing_id;
     FileInfo *fi;