diff --git a/src/baseclient.cc b/src/baseclient.cc
index 78e38fe..492f501 100644
--- a/src/baseclient.cc
+++ b/src/baseclient.cc
@@ -130,11 +130,10 @@ void BaseClient::HandleRedirectResponse(std::string& code, std::string& message,
   }
 }
 
-Result<Response> BaseClient::GetErrorResponse(http::Response resp,
-                                              std::string_view resource,
-                                              http::Method method,
-                                              const std::string& bucket_name,
-                                              const std::string& object_name) {
+Result<Response> BaseClient::GetErrorResponse(
+    http::Response resp, [[maybe_unused]] std::string_view resource,
+    http::Method method, const std::string& bucket_name,
+    const std::string& object_name) {
   if (!resp.error.empty()) {
     return tl::make_unexpected(error::Error(resp.error));
   }
diff --git a/src/client.cc b/src/client.cc
index e6bcad8..c1045d7 100644
--- a/src/client.cc
+++ b/src/client.cc
@@ -269,7 +269,8 @@ struct ScopedRDMARegistration {
 
 }  // namespace
 
-ListObjectsResult::ListObjectsResult(error::Error err) : failed_(true) {
+ListObjectsResult::ListObjectsResult([[maybe_unused]] error::Error err)
+    : failed_(true) {
   resp_ = std::make_shared<ListObjectsResponse>();
   itr_ = resp_->contents.end();
 }
@@ -384,7 +385,7 @@ void ListObjectsResult::Populate() {
   }
 }
 
-RemoveObjectsResult::RemoveObjectsResult(error::Error err) {
+RemoveObjectsResult::RemoveObjectsResult([[maybe_unused]] error::Error err) {
   done_ = true;
   itr_ = resp_.errors.end();
 }
@@ -1023,7 +1024,7 @@ Result<ComposeObjectResponse> Client::ComposeObject(ComposeObjectArgs args) {
     amu_args.region = args.region;
     amu_args.object = args.object;
     amu_args.upload_id = upload_id;
-    AbortMultipartUpload(amu_args);
+    (void)AbortMultipartUpload(amu_args);
   }
 
   return resp;
@@ -1586,7 +1587,7 @@ Result<PutObjectResponse> Client::PutObject(PutObjectArgs args) {
         amu_args.region = std::move(args.region);
         amu_args.object = std::move(args.object);
         amu_args.upload_id = upload_id;
-        AbortMultipartUpload(amu_args);
+        (void)AbortMultipartUpload(amu_args);
       }
       return tl::make_unexpected(first_err);
     }
@@ -1611,7 +1612,7 @@ Result<PutObjectResponse> Client::PutObject(PutObjectArgs args) {
       amu_args.region = std::move(args.region);
       amu_args.object = std::move(args.object);
       amu_args.upload_id = upload_id;
-      AbortMultipartUpload(amu_args);
+      (void)AbortMultipartUpload(amu_args);
     }
     if (!cmu_resp) {
       return tl::make_unexpected(cmu_resp.error());
@@ -1658,7 +1659,7 @@ Result<PutObjectResponse> Client::PutObject(PutObjectArgs args) {
     amu_args.region = std::move(args.region);
     amu_args.object = std::move(args.object);
     amu_args.upload_id = upload_id;
-    AbortMultipartUpload(amu_args);
+    (void)AbortMultipartUpload(amu_args);
   }
 
   return resp;
diff --git a/tests/tests.cc b/tests/tests.cc
index 824fc59..7d4de3b 100644
--- a/tests/tests.cc
+++ b/tests/tests.cc
@@ -798,7 +798,7 @@ class Tests {
         try {
           minio::s3::RemoveBucketArgs args;
           args.bucket = b;
-          client_.RemoveBucket(args);
+          (void)client_.RemoveBucket(args);
         } catch (...) {
         }
       };
@@ -1101,7 +1101,7 @@ class Tests {
       } catch (const std::runtime_error&) {
         minio::s3::RemoveBucketArgs args;
         args.bucket = bucket_name;
-        client_.RemoveBucket(args);
+        (void)client_.RemoveBucket(args);
         throw;
       }
     }
@@ -1243,7 +1243,7 @@ class Tests {
       } catch (const std::runtime_error&) {
         minio::s3::RemoveBucketArgs args;
         args.bucket = bucket_name;
-        client_.RemoveBucket(args);
+        (void)client_.RemoveBucket(args);
         throw;
       }
     }
@@ -1296,7 +1296,7 @@ class Tests {
           try {
             minio::s3::RemoveBucketArgs args;
             args.bucket = b;
-            client_.RemoveBucket(args);
+            (void)client_.RemoveBucket(args);
           } catch (...) {
           }
         }
@@ -1371,7 +1371,7 @@ class Tests {
       {
         minio::s3::RemoveBucketArgs args;
         args.bucket = bucket_name;
-        client_.RemoveBucket(args);
+        (void)client_.RemoveBucket(args);
       }
     }
 
@@ -1405,7 +1405,7 @@ class Tests {
       {
         minio::s3::RemoveBucketArgs args;
         args.bucket = bucket_name;
-        client_.RemoveBucket(args);
+        (void)client_.RemoveBucket(args);
       }
     }
 
@@ -1439,7 +1439,7 @@ class Tests {
       {
         minio::s3::RemoveBucketArgs args;
         args.bucket = bucket_name;
-        client_.RemoveBucket(args);
+        (void)client_.RemoveBucket(args);
       }
     }
 
@@ -1473,7 +1473,7 @@ class Tests {
       {
         minio::s3::RemoveBucketArgs args;
         args.bucket = bucket_name;
-        client_.RemoveBucket(args);
+        (void)client_.RemoveBucket(args);
       }
     }