diff --git a/functions.lua b/functions.lua
index 1243e20..de2458d 100644
--- a/functions.lua
+++ b/functions.lua
@@ -130,12 +130,12 @@ end
 
 basic_functions.read_file=function(filename)
 	local file=io.open(filename,"r")
-	out=""
+	local out=""
 	if file then
 		for line in file:lines() do
 			out=out..line
 		end
-		file.close()
+		file:close()
 	end
 	return(out)
 end