diff --git a/compiler_tester/src/compiler_tester/arguments.rs b/compiler_tester/src/compiler_tester/arguments.rs
index 207079e3..5109c95c 100644
--- a/compiler_tester/src/compiler_tester/arguments.rs
+++ b/compiler_tester/src/compiler_tester/arguments.rs
@@ -6,7 +6,7 @@ use std::path::PathBuf;
 
 use structopt::StructOpt;
 
-use compiler_tester::workflow::Workflow;
+use compiler_tester::Workflow;
 
 ///
 /// The compiler tester arguments.
diff --git a/compiler_tester/src/lib.rs b/compiler_tester/src/lib.rs
index 23173531..e2d075e4 100644
--- a/compiler_tester/src/lib.rs
+++ b/compiler_tester/src/lib.rs
@@ -10,11 +10,12 @@ pub(crate) mod summary;
 pub(crate) mod test;
 pub(crate) mod utils;
 pub(crate) mod vm;
-pub mod workflow;
+pub(crate) mod workflow;
 
 pub use self::filters::Filters;
 pub use self::llvm_options::LLVMOptions;
 pub use self::summary::Summary;
+pub use self::workflow::Workflow;
 pub use crate::vm::eravm::deployers::native_deployer::NativeDeployer as EraVMNativeDeployer;
 pub use crate::vm::eravm::deployers::system_contract_deployer::SystemContractDeployer as EraVMSystemContractDeployer;
 pub use crate::vm::eravm::EraVM;
@@ -27,7 +28,6 @@ use std::sync::Mutex;
 use itertools::Itertools;
 use rayon::iter::IntoParallelIterator;
 use rayon::iter::ParallelIterator;
-use workflow::Workflow;
 
 pub use crate::compilers::eravm::EraVMCompiler;
 pub use crate::compilers::llvm::LLVMCompiler;
diff --git a/compiler_tester/src/workflow.rs b/compiler_tester/src/workflow.rs
index bc86bcf5..862a2c3b 100644
--- a/compiler_tester/src/workflow.rs
+++ b/compiler_tester/src/workflow.rs
@@ -15,12 +15,9 @@ pub enum Workflow {
     BuildAndRun,
 }
 
-// any error type implementing Display is acceptable.
-type ParseError = &'static str;
-
 impl FromStr for Workflow {
-    type Err = ParseError;
-    
+    type Err = &'static str;
+
     fn from_str(day: &str) -> Result<Self, Self::Err> {
         match day {
             "build" => Ok(Workflow::BuildOnly),
diff --git a/fuzzer/fuzz_targets/common.rs b/fuzzer/fuzz_targets/common.rs
index eb9f04b5..1c1500fe 100644
--- a/fuzzer/fuzz_targets/common.rs
+++ b/fuzzer/fuzz_targets/common.rs
@@ -3,8 +3,8 @@ use std::{
     sync::Arc,
 };
 
+use compiler_tester::Workflow;
 use compiler_tester::{Buildable, EthereumTest, Mode, SolidityCompiler, SolidityMode, Summary};
-use compiler_tester::workflow::Workflow;
 pub use solidity_adapter::{
     test::function_call::parser::{
         lexical::token::{
@@ -174,7 +174,7 @@ pub fn build_and_run(test: EthereumTest) -> anyhow::Result<Summary> {
         compiler_tester::Summary::new(true, false).wrap(),
         compiler_tester::Filters::new(vec![], vec![], vec![]),
         None,
-        Workflow::BuildAndRun
+        Workflow::BuildAndRun,
     )?;
     zkevm_tester::runners::compiler_tests::set_tracing_mode(
         zkevm_tester::runners::compiler_tests::VmTracingOptions::from_u64(0),