diff --git a/__wasm/wasmtime/examples/example2.rs b/__wasm/wasmtime/examples/example2.rs
index 064c04b..ce9e455 100644
--- a/__wasm/wasmtime/examples/example2.rs
+++ b/__wasm/wasmtime/examples/example2.rs
@@ -14,7 +14,7 @@ use wasmtime::*;
 // }
 fn main() -> Result<()> {
     let engine = Engine::default();
-    let wasm = std::fs::read("./examples/hello_wasm_bg.wasm").unwrap();
+    let wasm = std::fs::read("./examples/hello_wasm_bg.wasm")?;
     let module = Module::new(&engine, wasm)?;
 
     let mut linker = Linker::new(&engine);
@@ -35,14 +35,15 @@ fn main() -> Result<()> {
 
     let memory = instance.get_memory(&mut store, "memory")
         .ok_or_else(|| anyhow::format_err!("failed to find `memory` export"))?;
+    // println!("memory size: {}", memory.size(&store));
 
     let msg = "hatter".as_bytes();
-    let malloc = instance.get_typed_func::<i32, i32, _>(&mut store, "__wbindgen_malloc")?;
-    let msg_ptr = malloc.call(&mut store, msg.len() as i32)?;
+    let malloc_fn = instance.get_typed_func::<i32, i32, _>(&mut store, "__wbindgen_malloc")?;
+    let msg_ptr = malloc_fn.call(&mut store, msg.len() as i32)?;
     memory.write(&mut store, msg_ptr as usize, msg)?;
 
     let greet_fn = instance.get_typed_func::<(i32, i32), (), _>(&mut store, "greet")?;
-    greet_fn.call(&mut store, (p, msg.len() as i32))?;
+    greet_fn.call(&mut store, (msg_ptr, msg.len() as i32))?;
 
     Ok(())
 }