diff --git a/src/fuse_open.cpp b/src/fuse_open.cpp
index 00d88b0d..c38a5b0e 100644
--- a/src/fuse_open.cpp
+++ b/src/fuse_open.cpp
@@ -242,6 +242,8 @@ namespace l
   }
 }
 
+// fusepath -> {fd,backing_id,ref_count,}
+
 namespace FUSE
 {
   int