diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 0adb787..b365c0d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -9,4 +9,3 @@ repos:
         entry: cargo fmt --all -- --check --color always
         language: system
         pass_filenames: false
- 
\ No newline at end of file
diff --git a/tests/cli_fuzz_integration_test.rs b/tests/cli_fuzz_integration_test.rs
index d2178fc..460be69 100644
--- a/tests/cli_fuzz_integration_test.rs
+++ b/tests/cli_fuzz_integration_test.rs
@@ -41,7 +41,7 @@ mod tests {
         };
 
         with_modified_phink_config(&config, || {
-            instrument(Sample::Dummy);
+            let _ = instrument(Sample::Dummy);
             let mut initial_corpus_len = 0_usize;
             let phink_output = fuzz_output.join("phink");
 
@@ -129,7 +129,7 @@ mod tests {
         };
 
         with_modified_phink_config(&config, || {
-            instrument(Sample::Dummy);
+            let _ = instrument(Sample::Dummy);
 
             let fuzzing = ensure_while_fuzzing(&config, Duration::from_secs(120), || {
                 let fuzz_created = fs::metadata(fuzz_output.clone()).is_ok();
diff --git a/tests/cli_instrument_integration_test.rs b/tests/cli_instrument_integration_test.rs
index 5dc5d97..5317a2f 100644
--- a/tests/cli_instrument_integration_test.rs
+++ b/tests/cli_instrument_integration_test.rs
@@ -37,7 +37,7 @@ mod tests {
         };
 
         let test = with_modified_phink_config(&config, || {
-            instrument(Sample::MultiContractCaller);
+            let _ = instrument(Sample::MultiContractCaller);
 
             ensure!(
                 fs::exists(path_instrumented_contract.path.clone()).is_ok(),
@@ -78,7 +78,7 @@ mod tests {
         };
 
         let test = with_modified_phink_config(&config, || {
-            instrument(Sample::MultiContractCaller);
+            let _ = instrument(Sample::MultiContractCaller);
 
             ensure!(
                 fs::exists(path_instrumented_contract.path.clone()).is_ok(),
@@ -132,7 +132,7 @@ mod tests {
         };
 
         let test = with_modified_phink_config(&config, || {
-            instrument(Sample::Dummy);
+            let _ = instrument(Sample::Dummy);
 
             let contains_instrumented_code = find_string_in_rs_files(
                 &path_instrumented_contract.path,