diff --git a/x/ibc/23-commitment/exported/exported.go b/x/ibc/23-commitment/exported/exported.go
index 9024368fac..b4f2c0c18f 100644
--- a/x/ibc/23-commitment/exported/exported.go
+++ b/x/ibc/23-commitment/exported/exported.go
@@ -14,7 +14,6 @@ import ics23 "github.com/confio/ics23/go"
 // and the inclusion or non-inclusion of an arbitrary key-value pair
 // can be proven with the proof.
 type Root interface {
-	GetCommitmentType() Type
 	GetHash() []byte
 	Empty() bool
 }
@@ -22,7 +21,6 @@ type Root interface {
 // Prefix implements spec:CommitmentPrefix.
 // Prefix represents the common "prefix" that a set of keys shares.
 type Prefix interface {
-	GetCommitmentType() Type
 	Bytes() []byte
 	Empty() bool
 }
@@ -30,7 +28,6 @@ type Prefix interface {
 // Path implements spec:CommitmentPath.
 // A path is the additional information provided to the verification function.
 type Path interface {
-	GetCommitmentType() Type
 	String() string
 	Empty() bool
 }
@@ -40,34 +37,9 @@ type Path interface {
 // Each proof has designated key-value pair it is able to prove.
 // Proofs includes key but value is provided dynamically at the verification time.
 type Proof interface {
-	GetCommitmentType() Type
 	VerifyMembership([]*ics23.ProofSpec, Root, Path, []byte) error
 	VerifyNonMembership([]*ics23.ProofSpec, Root, Path) error
 	Empty() bool
 
 	ValidateBasic() error
 }
-
-// Type defines the type of the commitment
-type Type byte
-
-// Registered commitment types
-const (
-	Merkle Type = iota + 1 // 1
-)
-
-// string representation of the commitment types
-const (
-	TypeMerkle string = "merkle"
-)
-
-// String implements the Stringer interface
-func (ct Type) String() string {
-	switch ct {
-	case Merkle:
-		return TypeMerkle
-
-	default:
-		return ""
-	}
-}
diff --git a/x/ibc/23-commitment/types/codec.go b/x/ibc/23-commitment/types/codec.go
index a1579a944d..b53c0ce73f 100644
--- a/x/ibc/23-commitment/types/codec.go
+++ b/x/ibc/23-commitment/types/codec.go
@@ -6,6 +6,43 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/ibc/23-commitment/exported"
 )
 
+// RegisterInterfaces registers the commitment interfaces to protobuf Any.
+func RegisterInterfaces(registry cdctypes.InterfaceRegistry) {
+	registry.RegisterInterface(
+		"cosmos.ibc.commitment.Root",
+		(*exported.Root)(nil),
+	)
+	registry.RegisterInterface(
+		"cosmos.ibc.commitment.Prefix",
+		(*exported.Prefix)(nil),
+	)
+	registry.RegisterInterface(
+		"cosmos.ibc.commitment.Path",
+		(*exported.Path)(nil),
+	)
+	registry.RegisterInterface(
+		"cosmos.ibc.commitment.Proof",
+		(*exported.Proof)(nil),
+	)
+
+	registry.RegisterImplementations(
+		(*exported.Root)(nil),
+		&MerkleRoot{},
+	)
+	registry.RegisterImplementations(
+		(*exported.Prefix)(nil),
+		&MerklePrefix{},
+	)
+	registry.RegisterImplementations(
+		(*exported.Path)(nil),
+		&MerklePath{},
+	)
+	registry.RegisterImplementations(
+		(*exported.Proof)(nil),
+		&MerkleProof{},
+	)
+}
+
 // RegisterCodec registers the necessary x/ibc/23-commitment interfaces and concrete types
 // on the provided Amino codec. These types are used for Amino JSON serialization.
 func RegisterCodec(cdc *codec.Codec) {
diff --git a/x/ibc/23-commitment/types/merkle.go b/x/ibc/23-commitment/types/merkle.go
index 3636cecf4e..d219130a34 100644
--- a/x/ibc/23-commitment/types/merkle.go
+++ b/x/ibc/23-commitment/types/merkle.go
@@ -41,11 +41,6 @@ func (mr MerkleRoot) GetHash() []byte {
 	return mr.Hash
 }
 
-// GetCommitmentType implements RootI interface
-func (MerkleRoot) GetCommitmentType() exported.Type {
-	return exported.Merkle
-}
-
 // Empty returns true if the root is empty
 func (mr MerkleRoot) Empty() bool {
 	return len(mr.GetHash()) == 0
@@ -60,11 +55,6 @@ func NewMerklePrefix(keyPrefix []byte) MerklePrefix {
 	}
 }
 
-// GetCommitmentType implements Prefix interface
-func (MerklePrefix) GetCommitmentType() exported.Type {
-	return exported.Merkle
-}
-
 // Bytes returns the key prefix bytes
 func (mp MerklePrefix) Bytes() []byte {
 	return mp.KeyPrefix
@@ -89,11 +79,6 @@ func NewMerklePath(keyPathStr []string) MerklePath {
 	}
 }
 
-// GetCommitmentType implements PathI
-func (MerklePath) GetCommitmentType() exported.Type {
-	return exported.Merkle
-}
-
 // String implements fmt.Stringer.
 func (mp MerklePath) String() string {
 	return mp.KeyPath.String()
@@ -132,11 +117,6 @@ func ApplyPrefix(prefix exported.Prefix, path string) (MerklePath, error) {
 
 var _ exported.Proof = (*MerkleProof)(nil)
 
-// GetCommitmentType implements ProofI
-func (MerkleProof) GetCommitmentType() exported.Type {
-	return exported.Merkle
-}
-
 // VerifyMembership verifies the membership pf a merkle proof against the given root, path, and value.
 func (proof MerkleProof) VerifyMembership(specs []*ics23.ProofSpec, root exported.Root, path exported.Path, value []byte) error {
 	if err := proof.validateVerificationArgs(specs, root); err != nil {
diff --git a/x/ibc/types/codec.go b/x/ibc/types/codec.go
index b6537fa8d4..3a337d02f2 100644
--- a/x/ibc/types/codec.go
+++ b/x/ibc/types/codec.go
@@ -24,4 +24,5 @@ func RegisterCodec(cdc *codec.Codec) {
 func RegisterInterfaces(registry cdctypes.InterfaceRegistry) {
 	connectiontypes.RegisterInterfaces(registry)
 	channeltypes.RegisterInterfaces(registry)
+	commitmenttypes.RegisterInterfaces(registry)
 }