diff --git a/init.lua b/init.lua
index 6c771f5..0d95593 100644
--- a/init.lua
+++ b/init.lua
@@ -414,12 +414,13 @@ string_ext={
         return (byte >= string_ext.zero and byte <= string_ext.nine) or (byte >= string_ext.letter_a and byte <= string_ext.letter_f)
     end,
 
-    magic_chars={"(", ")", "." "%", "+", "-", "*", "?", "[", "^", "$"},
+    magic_chars={"(", ")", ".", "%", "+", "-", "*", "?", "[", "^", "$"},
 
     escape_magic_chars=function(text)
         for _, magic_char in pairs(string_ext.magic_chars) do
-            text=string.gsub(string, "%"..magic_char,"%"..magic_char)
+            text=string.gsub(text, "%"..magic_char,"%"..magic_char)
         end
+        return text
     end
 }