diff --git a/crates/specs/src/etable.rs b/crates/specs/src/etable.rs
index a5fc9ef51..bc9ca875c 100644
--- a/crates/specs/src/etable.rs
+++ b/crates/specs/src/etable.rs
@@ -61,7 +61,7 @@ impl EventTable {
 
     pub fn write(&self, path: &PathBuf) -> std::io::Result<()> {
         let mut fd = std::fs::File::create(path)?;
-        fd.write(&bincode::serialize(self).unwrap())?;
+        fd.write_all(&bincode::serialize(self).unwrap())?;
         Ok(())
     }
 
diff --git a/crates/zkwasm/src/loader/mod.rs b/crates/zkwasm/src/loader/mod.rs
index 35e69b519..cd41b5f7a 100644
--- a/crates/zkwasm/src/loader/mod.rs
+++ b/crates/zkwasm/src/loader/mod.rs
@@ -28,8 +28,6 @@ use crate::circuits::ZkWasmCircuit;
 use crate::error::BuildingCircuitError;
 use crate::loader::err::Error;
 use crate::loader::err::PreCheckErr;
-#[cfg(feature = "profile")]
-use crate::profile::Profiler;
 
 use crate::runtime::host::host_env::HostEnv;
 use crate::runtime::monitor::WasmiMonitor;