diff --git a/reference/helpers.go b/reference/helpers.go
index a8f46ced..c7b2bc46 100644
--- a/reference/helpers.go
+++ b/reference/helpers.go
@@ -14,7 +14,7 @@ func IsNameOnly(ref Named) bool {
 // FamiliarName returns the familiar name string
 // for the given named, familiarizing if needed.
 func FamiliarName(ref Named) string {
-	if nn, ok := ref.(NormalizedNamed); ok {
+	if nn, ok := ref.(normalizedNamed); ok {
 		return nn.Familiar().Name()
 	}
 	return ref.Name()
@@ -23,7 +23,7 @@ func FamiliarName(ref Named) string {
 // FamiliarString returns the familiar string representation
 // for the given reference, familiarizing if needed.
 func FamiliarString(ref Reference) string {
-	if nn, ok := ref.(NormalizedNamed); ok {
+	if nn, ok := ref.(normalizedNamed); ok {
 		return nn.Familiar().String()
 	}
 	return ref.String()
diff --git a/reference/normalize.go b/reference/normalize.go
index da797b70..73ae82f4 100644
--- a/reference/normalize.go
+++ b/reference/normalize.go
@@ -16,12 +16,12 @@ var (
 	defaultTag          = "latest"
 )
 
-// NormalizedNamed represents a name which has been
+// normalizedNamed represents a name which has been
 // normalized and has a familiar form. A familiar name
 // is what is used in Docker UI. An example normalized
 // name is "docker.io/library/ubuntu" and corresponding
 // familiar name of "ubuntu".
-type NormalizedNamed interface {
+type normalizedNamed interface {
 	Named
 	Familiar() Named
 }
@@ -30,7 +30,7 @@ type NormalizedNamed interface {
 // transforming a familiar name from Docker UI to a fully
 // qualified reference. If the value may be an identifier
 // use ParseAnyReference.
-func ParseNormalizedNamed(s string) (NormalizedNamed, error) {
+func ParseNormalizedNamed(s string) (Named, error) {
 	if ok := anchoredIdentifierRegexp.MatchString(s); ok {
 		return nil, fmt.Errorf("invalid repository name (%s), cannot specify 64-byte hexadecimal strings", s)
 	}
@@ -49,7 +49,7 @@ func ParseNormalizedNamed(s string) (NormalizedNamed, error) {
 	if err != nil {
 		return nil, err
 	}
-	named, isNamed := ref.(NormalizedNamed)
+	named, isNamed := ref.(Named)
 	if !isNamed {
 		return nil, fmt.Errorf("reference %s has no name", ref.String())
 	}
diff --git a/reference/normalize_test.go b/reference/normalize_test.go
index 9697a36b..8d8b0b29 100644
--- a/reference/normalize_test.go
+++ b/reference/normalize_test.go
@@ -216,7 +216,7 @@ func TestParseRepositoryInfo(t *testing.T) {
 			refStrings = append(refStrings, tcase.AmbiguousName)
 		}
 
-		var refs []NormalizedNamed
+		var refs []Named
 		for _, r := range refStrings {
 			named, err := ParseNormalizedNamed(r)
 			if err != nil {
@@ -226,7 +226,7 @@ func TestParseRepositoryInfo(t *testing.T) {
 		}
 
 		for _, r := range refs {
-			if expected, actual := tcase.FamiliarName, r.Familiar().Name(); expected != actual {
+			if expected, actual := tcase.FamiliarName, FamiliarName(r); expected != actual {
 				t.Fatalf("Invalid normalized reference for %q. Expected %q, got %q", r, expected, actual)
 			}
 			if expected, actual := tcase.FullName, r.String(); expected != actual {
@@ -245,22 +245,21 @@ func TestParseRepositoryInfo(t *testing.T) {
 
 func TestParseReferenceWithTagAndDigest(t *testing.T) {
 	shortRef := "busybox:latest@sha256:86e0e091d0da6bde2456dbb48306f3956bbeb2eae1b5b9a43045843f69fe4aaa"
-	nref, err := ParseNormalizedNamed(shortRef)
+	ref, err := ParseNormalizedNamed(shortRef)
 	if err != nil {
 		t.Fatal(err)
 	}
-	if expected, actual := "docker.io/library/"+shortRef, nref.String(); actual != expected {
-		t.Fatalf("Invalid parsed reference for %q: expected %q, got %q", nref, expected, actual)
+	if expected, actual := "docker.io/library/"+shortRef, ref.String(); actual != expected {
+		t.Fatalf("Invalid parsed reference for %q: expected %q, got %q", ref, expected, actual)
 	}
 
-	ref := nref.Familiar()
 	if _, isTagged := ref.(NamedTagged); !isTagged {
 		t.Fatalf("Reference from %q should support tag", ref)
 	}
 	if _, isCanonical := ref.(Canonical); !isCanonical {
 		t.Fatalf("Reference from %q should support digest", ref)
 	}
-	if expected, actual := shortRef, ref.String(); actual != expected {
+	if expected, actual := shortRef, FamiliarString(ref); actual != expected {
 		t.Fatalf("Invalid parsed reference for %q: expected %q, got %q", ref, expected, actual)
 	}
 }