diff --git a/lua/fude/util.lua b/lua/fude/util_renamed.lua
similarity index 98%
rename from lua/fude/util.lua
rename to lua/fude/util_renamed.lua
index a8585d51..41e6231a 100644
--- a/lua/fude/util.lua
+++ b/lua/fude/util_renamed.lua
@@ -1,3 +1,4 @@
+-- rename diff check
 local M = {}
 
 --- Check if a value is null (nil or vim.NIL).