diff --git a/internal/sigv4auth/auth.go b/internal/sigv4auth/auth.go
index e57a16d..f47a55e 100644
--- a/internal/sigv4auth/auth.go
+++ b/internal/sigv4auth/auth.go
@@ -144,7 +144,7 @@ func ParseAuthorization(authorization, expectedService string) (AuthData, error)
 		return a, &ParseError{Kind: ErrUnsupportedAuthorizationVersion, Value: algo}
 	}
 	if algo != AlgorithmHMACSHA256 {
-		return a, &ParseError{Kind: ErrInvalidAuthorizationType, Value: algo}
+		return a, &ParseError{Kind: ErrInvalidAuthorizationType, Input: authorization, Value: algo}
 	}
 
 	kvPairs := strings.Split(authParts[1], ",")
diff --git a/s3api/utils/auth-reader.go b/s3api/utils/auth-reader.go
index 8161b5e..c17061e 100644
--- a/s3api/utils/auth-reader.go
+++ b/s3api/utils/auth-reader.go
@@ -128,7 +128,7 @@ func mapAuthParseError(err *sigv4auth.ParseError) error {
 	case sigv4auth.ErrUnsupportedAuthorizationVersion:
 		return s3err.GetAPIError(s3err.ErrUnsupportedAuthorizationMechanism)
 	case sigv4auth.ErrInvalidAuthorizationType:
-		return s3err.GetInvalidArgumentErr(s3err.InvalidArgAuthorizationType, err.Value)
+		return s3err.GetInvalidArgumentErr(s3err.InvalidArgAuthorizationType, err.Input)
 	case sigv4auth.ErrMissingComponents:
 		return s3err.MalformedAuth.MissingComponents()
 	case sigv4auth.ErrMissingCredential:
diff --git a/s3api/utils/auth_test.go b/s3api/utils/auth_test.go
index af1f97a..2fa1b84 100644
--- a/s3api/utils/auth_test.go
+++ b/s3api/utils/auth_test.go
@@ -15,6 +15,7 @@
 package utils
 
 import (
+	"errors"
 	"net"
 	"strings"
 	"testing"
@@ -24,6 +25,7 @@ import (
 	"github.com/valyala/fasthttp"
 	"github.com/valyala/fasthttp/fasthttputil"
 	"github.com/versity/versitygw/internal/sigv4auth"
+	"github.com/versity/versitygw/s3err"
 )
 
 func TestAuthParse(t *testing.T) {
@@ -69,6 +71,32 @@ func TestAuthParse(t *testing.T) {
 	}
 }
 
+func TestAuthParseUnsupportedType(t *testing.T) {
+	vectors := []struct {
+		name    string
+		authstr string
+	}{
+		{
+			name:    "misspelled algorithm",
+			authstr: "AWS-HMAC-SHA25 Credential=user/20261007/us-east-1/s3/aws4_request,SignedHeaders=host;x-amz-content-sha256;x-amz-date,Signature=4a2a292c73c80d2fe4a4b9e506fe0d1a8209f92dd2dfd32c27c30402e42b473d",
+		},
+		{
+			name:    "spaces between components",
+			authstr: "AWS2-HMAC-SHA1 Credential=user/20261007/us-east-1/s3/aws4_request, SignedHeaders=host;x-amz-date, Signature=4a2a292c73c80d2fe4a4b9e506fe0d1a8209f92dd2dfd32c27c30402e42b473d",
+		},
+	}
+
+	for _, v := range vectors {
+		t.Run(v.name, func(t *testing.T) {
+			_, err := ParseAuthorization(v.authstr)
+			want := s3err.GetInvalidArgumentErr(s3err.InvalidArgAuthorizationType, v.authstr)
+			if !errors.Is(err, want) {
+				t.Errorf("err got %v, expected %v", err, want)
+			}
+		})
+	}
+}
+
 // 2024/02/06 21:03:28 Request headers:
 // 2024/02/06 21:03:28 Host: 172.21.0.160:11000
 // 2024/02/06 21:03:28 User-Agent: S3 Browser/11.5.7 (https://s3browser.com)
diff --git a/tests/integration/sigv4_auth.go b/tests/integration/sigv4_auth.go
index 551b43f..95e9b62 100644
--- a/tests/integration/sigv4_auth.go
+++ b/tests/integration/sigv4_auth.go
@@ -65,7 +65,7 @@ func Authentication_unsupported_signature_version(s *S3Conf) error {
 			return err
 		}
 
-		return checkHTTPResponseApiErr(resp, s3err.GetInvalidArgumentErr(s3err.InvalidArgAuthorizationType, "AWS2-HMAC-SHA1"))
+		return checkHTTPResponseApiErr(resp, s3err.GetInvalidArgumentErr(s3err.InvalidArgAuthorizationType, authHdr))
 	})
 }
 
diff --git a/tests/test_rest_list_buckets.sh b/tests/test_rest_list_buckets.sh
index 128cf1c..0e384fb 100644
--- a/tests/test_rest_list_buckets.sh
+++ b/tests/test_rest_list_buckets.sh
@@ -54,9 +54,6 @@ export RUN_USERS=true
 
 # tags: curl,ListBuckets,required-headers,Authorization,invalid-header
 @test "REST - invalid authorization scheme" {
-  if [ "$DIRECT" != "true" ]; then
-    skip "https://github.com/versity/versitygw/issues/1705"
-  fi
   run list_buckets_check_authorization_scheme_error
   assert_success
 }