diff --git a/libraries/chain/include/graphene/chain/config.hpp b/libraries/chain/include/graphene/chain/config.hpp
index 757582b0..149118c4 100644
--- a/libraries/chain/include/graphene/chain/config.hpp
+++ b/libraries/chain/include/graphene/chain/config.hpp
@@ -87,7 +87,8 @@
 #define GRAPHENE_GENESIS_TIMESTAMP                            (1431700000)  /// Should be divisible by GRAPHENE_DEFAULT_BLOCK_INTERVAL
 
 #define GRAPHENE_MAX_WORKER_NAME_LENGTH                       63
-#define GRAPHENE_MAX_WORKER_URL_LENGTH                        127
+
+#define GRAPHENE_MAX_URL_LENGTH                               127
 
 // counter initialization values used to derive near and far future seeds for shuffling witnesses
 // we use the fractional bits of sqrt(2) in hex
diff --git a/libraries/chain/include/graphene/chain/operations.hpp b/libraries/chain/include/graphene/chain/operations.hpp
index f6bf79ab..bf7ef5c1 100644
--- a/libraries/chain/include/graphene/chain/operations.hpp
+++ b/libraries/chain/include/graphene/chain/operations.hpp
@@ -314,6 +314,7 @@ namespace graphene { namespace chain {
       asset                                 fee;
       /// The account which owns the delegate. This account pays the fee for this operation.
       account_id_type                       delegate_account;
+      string                                url;
 
       account_id_type fee_payer()const { return delegate_account; }
       void get_required_auth(flat_set<account_id_type>& active_auth_set, flat_set<account_id_type>&)const;
@@ -334,6 +335,7 @@ namespace graphene { namespace chain {
       asset             fee;
       /// The account which owns the delegate. This account pays the fee for this operation.
       account_id_type   witness_account;
+      string            url;
       key_id_type       block_signing_key;
       secret_hash_type  initial_secret;
 
@@ -1543,9 +1545,9 @@ FC_REFLECT( graphene::chain::account_whitelist_operation, (fee)(authorizing_acco
 FC_REFLECT( graphene::chain::account_transfer_operation, (fee)(account_id)(new_owner) )
 
 FC_REFLECT( graphene::chain::delegate_create_operation,
-            (fee)(delegate_account) )
+            (fee)(delegate_account)(url) )
 
-FC_REFLECT( graphene::chain::witness_create_operation, (fee)(witness_account)(block_signing_key)(initial_secret) )
+FC_REFLECT( graphene::chain::witness_create_operation, (fee)(witness_account)(url)(block_signing_key)(initial_secret) )
 FC_REFLECT( graphene::chain::witness_withdraw_pay_operation, (fee)(from_witness)(to_account)(amount) )
 
 FC_REFLECT( graphene::chain::limit_order_create_operation,
diff --git a/libraries/chain/operations.cpp b/libraries/chain/operations.cpp
index 063ce897..56eb9bcc 100644
--- a/libraries/chain/operations.cpp
+++ b/libraries/chain/operations.cpp
@@ -341,6 +341,7 @@ void delegate_create_operation::get_required_auth(flat_set<account_id_type>& act
 void delegate_create_operation::validate()const
 {
    FC_ASSERT( fee.amount >= 0 );
+   FC_ASSERT(url.size() < GRAPHENE_MAX_URL_LENGTH );
 }
 
 void asset_fund_fee_pool_operation::get_required_auth(flat_set<account_id_type>& active_auth_set, flat_set<account_id_type>&) const
@@ -539,6 +540,7 @@ void witness_create_operation::get_required_auth(flat_set<graphene::chain::accou
 void witness_create_operation::validate() const
 {
    FC_ASSERT(fee.amount >= 0);
+   FC_ASSERT(url.size() < GRAPHENE_MAX_URL_LENGTH );
 }
 
 share_type witness_create_operation::calculate_fee(const fee_schedule_type& k) const
@@ -779,7 +781,7 @@ void worker_create_operation::validate() const
    FC_ASSERT(daily_pay > 0);
    FC_ASSERT(daily_pay < GRAPHENE_BLOCKCHAIN_MAX_SHARES);
    FC_ASSERT(name.size() < GRAPHENE_MAX_WORKER_NAME_LENGTH );
-   FC_ASSERT(url.size() < GRAPHENE_MAX_WORKER_URL_LENGTH );
+   FC_ASSERT(url.size() < GRAPHENE_MAX_URL_LENGTH );
 }
 
 share_type worker_create_operation::calculate_fee(const fee_schedule_type& k) const