diff --git a/programs/wat2wasm/src/main.rs b/programs/wat2wasm/src/main.rs
index 14e9ba5..1e138b7 100644
--- a/programs/wat2wasm/src/main.rs
+++ b/programs/wat2wasm/src/main.rs
@@ -9,18 +9,25 @@ use crate::tokenizer::Token;
 fn main() {
     // Read the contents of the file into a string
     let contents =
-        fs::read_to_string("programs/wat2wasm/assets/add.wat").expect("Failed to read file");
+        fs::read_to_string("programs/wat2wasm/assets/complex.wat").expect("Failed to read file");
 
-    let mut lex = Token::lexer(&contents);
+    let lex = Token::lexer(&contents);
     for toke in lex {
         println!("{:?}", toke);
     }
 }
 
 #[non_exhaustive]
+#[derive(Debug, PartialEq)]
 pub enum WasmType {
     I32,
     I64,
     F32,
     F64,
 }
+
+#[non_exhaustive]
+#[derive(Debug, PartialEq)]
+pub enum WasmOperation {
+    Add,
+}