--- a/client/rpc/src/lib.rs
+++ b/client/rpc/src/lib.rs
@@ -20,7 +20,7 @@
 use jsonrpc_core::{Error as RpcError, ErrorCode, Result};
 use jsonrpc_derive::rpc;
 use up_data_structs::{
-	RpcCollection, CollectionId, CollectionStats, CollectionLimits, TokenId, Property, PropertyKey,
+	RpcCollection, CollectionId, CollectionStats, CollectionLimits, TokenId, Property,
 	PropertyKeyPermission,
 };
 use sp_api::{BlockId, BlockT, ProvideRuntimeApi, ApiExt};
--- a/primitives/rpc/src/lib.rs
+++ b/primitives/rpc/src/lib.rs
@@ -17,7 +17,7 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 
 use up_data_structs::{
-	CollectionId, TokenId, RpcCollection, CollectionStats, CollectionLimits, Property, PropertyKey,
+	CollectionId, TokenId, RpcCollection, CollectionStats, CollectionLimits, Property,
 	PropertyKeyPermission,
 };
 use sp_std::vec::Vec;