diff --git a/data/api/apiBlock.go b/data/api/apiBlock.go
index 9f5670933..bcc12de0c 100644
--- a/data/api/apiBlock.go
+++ b/data/api/apiBlock.go
@@ -149,5 +149,4 @@ type GetBlockParameters struct {
 type GetAlteredAccountsForBlockOptions struct {
 	GetBlockParameters
 	TokensFilter string
-	WithMetadata bool
 }
diff --git a/data/outport/dtos.go b/data/outport/dtos.go
index 19fc88d83..cd36752b6 100644
--- a/data/outport/dtos.go
+++ b/data/outport/dtos.go
@@ -23,7 +23,7 @@ type AccountTokenData struct {
 	Identifier     string                      `json:"identifier"`
 	Balance        string                      `json:"balance"`
 	Properties     string                      `json:"properties"`
-	MetaData       *TokenMetaData              `json:"metadata"`
+	MetaData       *TokenMetaData              `json:"metadata,omitempty"`
 	AdditionalData *AdditionalAccountTokenData `json:"additionalData,omitempty"`
 }