diff --git a/config.toml b/config.toml
index 6a7f7cb..9b05eba 100644
--- a/config.toml
+++ b/config.toml
@@ -1,6 +1,8 @@
 be_quiet = false 
 [[targets]]
 input = "input.txt"
+# \ has to be escaped 
+reg_exp = "(\\d+) (\\w+) (\\d+)"
 
 [[targets]]
 input = "input_2.txt"