diff --git a/README.md b/README.md
index cb81483..2235c22 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ ColdDB
 ColdDB is a minetest mod that implements a serverless, asynchronous, NoSQL database engine.<br>
 It provides a key or key-value based storage system using plain Lua tables.<br>
 
+.cold file ext was removed.
+
 Usage
 ===========
 
diff --git a/colddb.lua b/colddb.lua
index da3f830..4530d24 100644
--- a/colddb.lua
+++ b/colddb.lua
@@ -81,7 +81,7 @@ function colddb.Colddb(dir)
 	end
 	
 	local function file_exists(name)
-		local f = io.open(string.format("%s/%s.cold", directory, name), "r")
+		local f = io.open(string.format("%s/%s", directory, name), "r")
 		if f ~= nil then 
 			io.close(f)
 			return true