diff --git a/backend/posix/posix.go b/backend/posix/posix.go
index 0a56c2bd..be6a91b3 100644
--- a/backend/posix/posix.go
+++ b/backend/posix/posix.go
@@ -2155,6 +2155,9 @@ func (p *Posix) DeleteObject(ctx context.Context, input *s3.DeleteObjectInput) (
 		if getString(input.VersionId) == "" {
 			// if the versionId is not specified, make the current version a delete marker
 			fi, err := os.Stat(objpath)
+			if errors.Is(err, syscall.ENAMETOOLONG) {
+				return nil, s3err.GetAPIError(s3err.ErrKeyTooLong)
+			}
 			if err != nil {
 				return nil, s3err.GetAPIError(s3err.ErrNoSuchKey)
 			}
@@ -2282,6 +2285,9 @@ func (p *Posix) DeleteObject(ctx context.Context, input *s3.DeleteObjectInput) (
 			isDelMarker, _ := p.isObjDeleteMarker(versionPath, *input.VersionId)
 
 			err = os.Remove(filepath.Join(versionPath, *input.VersionId))
+			if errors.Is(err, syscall.ENAMETOOLONG) {
+				return nil, s3err.GetAPIError(s3err.ErrKeyTooLong)
+			}
 			if errors.Is(err, fs.ErrNotExist) {
 				return &s3.DeleteObjectOutput{
 					DeleteMarker: &isDelMarker,
@@ -2300,6 +2306,9 @@ func (p *Posix) DeleteObject(ctx context.Context, input *s3.DeleteObjectInput) (
 	}
 
 	fi, err := os.Stat(objpath)
+	if errors.Is(err, syscall.ENAMETOOLONG) {
+		return nil, s3err.GetAPIError(s3err.ErrKeyTooLong)
+	}
 	if errors.Is(err, fs.ErrNotExist) {
 		// AWS returns success if the object does not exist
 		return &s3.DeleteObjectOutput{}, nil
diff --git a/tests/integration/tests.go b/tests/integration/tests.go
index f3b11295..08b07043 100644
--- a/tests/integration/tests.go
+++ b/tests/integration/tests.go
@@ -10186,7 +10186,7 @@ func HeadObject_name_too_long(s *S3Conf) error {
 			Key:    getPtr(genRandString(300)),
 		})
 		cancel()
-		if err := checkApiErr(err, s3err.GetAPIError(s3err.ErrMalformedXML)); err != nil {
+		if err := checkSdkApiErr(err, "BadRequest"); err != nil {
 			return err
 		}
 
@@ -10487,7 +10487,10 @@ func DeleteObject_name_too_long(s *S3Conf) error {
 			Key:    getPtr(genRandString(300)),
 		})
 		cancel()
-		return err
+		if err := checkApiErr(err, s3err.GetAPIError(s3err.ErrKeyTooLong)); err != nil {
+			return err
+		}
+		return nil
 	})
 }