diff --git a/cmd/oras/root/cp_test.go b/cmd/oras/root/cp_test.go
index 1adb5b339..099539913 100644
--- a/cmd/oras/root/cp_test.go
+++ b/cmd/oras/root/cp_test.go
@@ -39,7 +39,7 @@ import (
 var (
 	memStore        *memory.Store
 	memDesc         ocispec.Descriptor
-	manifestConent  = []byte(`{"schemaVersion":2,"mediaType":"application/vnd.oci.image.manifest.v1+json","artifactType":"application/vnd.unknown.artifact.v1","config":{"mediaType":"application/vnd.oci.empty.v1+json","digest":"sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a","size":2,"data":"e30="},"layers":[{"mediaType":"application/vnd.oci.empty.v1+json","digest":"sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a","size":2,"data":"e30="}]}`)
+	manifestContent = []byte(`{"schemaVersion":2,"mediaType":"application/vnd.oci.image.manifest.v1+json","artifactType":"application/vnd.unknown.artifact.v1","config":{"mediaType":"application/vnd.oci.empty.v1+json","digest":"sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a","size":2,"data":"e30="},"layers":[{"mediaType":"application/vnd.oci.empty.v1+json","digest":"sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a","size":2,"data":"e30="}]}`)
 	manifestDigest  = "sha256:1bb053792feb8d8d590001c212f2defad9277e091d2aa868cde2879ff41abb1b"
 	configContent   = []byte("{}")
 	configDigest    = "sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a"
@@ -74,13 +74,13 @@ func TestMain(m *testing.M) {
 		case r.URL.Path == fmt.Sprintf("/v2/%s/manifests/%s", repoFrom, manifestDigest) &&
 			r.Method == http.MethodHead:
 			w.Header().Set("Content-Type", ocispec.MediaTypeImageManifest)
-			w.Header().Set("Content-Length", fmt.Sprint(len(manifestConent)))
+			w.Header().Set("Content-Length", fmt.Sprint(len(manifestContent)))
 			w.WriteHeader(http.StatusOK)
 		case r.URL.Path == fmt.Sprintf("/v2/%s/manifests/%s", repoFrom, manifestDigest) &&
 			r.Method == http.MethodGet:
 			w.Header().Set("Content-Type", ocispec.MediaTypeImageManifest)
-			w.Header().Set("Content-Length", fmt.Sprint(len(manifestConent)))
-			_, _ = w.Write(manifestConent)
+			w.Header().Set("Content-Length", fmt.Sprint(len(manifestContent)))
+			_, _ = w.Write(manifestContent)
 			w.WriteHeader(http.StatusOK)
 		case r.URL.Path == fmt.Sprintf("/v2/%s/blobs/%s", repoFrom, configDigest) &&
 			r.Method == http.MethodGet:
@@ -106,8 +106,8 @@ func TestMain(m *testing.M) {
 		case r.URL.Path == fmt.Sprintf("/v2/%s/manifests/%s", repoTo, manifestDigest) &&
 			r.Method == http.MethodGet:
 			w.Header().Set("Content-Type", ocispec.MediaTypeImageManifest)
-			w.Header().Set("Content-Length", fmt.Sprint(len(manifestConent)))
-			_, _ = w.Write(manifestConent)
+			w.Header().Set("Content-Length", fmt.Sprint(len(manifestContent)))
+			_, _ = w.Write(manifestContent)
 			w.WriteHeader(http.StatusOK)
 		default:
 			w.WriteHeader(http.StatusNotAcceptable)