diff --git a/src/proto_alpha/lib_baking/test/test_endorsement.ml b/src/proto_alpha/lib_baking/test/test_endorsement.ml
index ac8ab0b80..59a8a9d0a 100644
--- a/src/proto_alpha/lib_baking/test/test_endorsement.ml
+++ b/src/proto_alpha/lib_baking/test/test_endorsement.ml
@@ -107,7 +107,7 @@ let test_endorsement_rewards block0 =
     done ;
     return (!account, !cpt) in
 
-  let bond = Tez.to_mutez Constants.endorsement_bond_cost in
+  let bond = Tez.to_mutez Constants.endorsement_security_deposit in
 
   (* Endorsement Rights *)
   (* #1 endorse & inject in a block *)
diff --git a/src/proto_alpha/lib_protocol/src/alpha_context.mli b/src/proto_alpha/lib_protocol/src/alpha_context.mli
index 774b43c0d..4d7e57937 100644
--- a/src/proto_alpha/lib_protocol/src/alpha_context.mli
+++ b/src/proto_alpha/lib_protocol/src/alpha_context.mli
@@ -261,7 +261,7 @@ module Constants : sig
   val seed_nonce_revelation_tip: Tez.t
   val origination_burn: Tez.t
   val block_security_deposit: Tez.t
-  val endorsement_bond_cost: Tez.t
+  val endorsement_security_deposit: Tez.t
   val faucet_credit: Tez.t
 
   val preserved_cycles: context -> int
diff --git a/src/proto_alpha/lib_protocol/src/baking.ml b/src/proto_alpha/lib_protocol/src/baking.ml
index f7c283938..6bd127bd1 100644
--- a/src/proto_alpha/lib_protocol/src/baking.ml
+++ b/src/proto_alpha/lib_protocol/src/baking.ml
@@ -140,7 +140,7 @@ let freeze_baking_bond ctxt { Block_header.priority ; _ } delegate =
     return (ctxt, bond)
 
 let freeze_endorsement_bond ctxt delegate =
-  let bond = Constants.endorsement_bond_cost in
+  let bond = Constants.endorsement_security_deposit in
   Delegate.freeze_bond ctxt delegate bond
   |> trace Cannot_freeze_endorsement_bond
 
diff --git a/src/proto_alpha/lib_protocol/src/baking.mli b/src/proto_alpha/lib_protocol/src/baking.mli
index 5b6e8af97..a2829bf09 100644
--- a/src/proto_alpha/lib_protocol/src/baking.mli
+++ b/src/proto_alpha/lib_protocol/src/baking.mli
@@ -44,7 +44,7 @@ val freeze_baking_bond:
   (context * Tez.t) tzresult Lwt.t
 
 (** [freeze_endorsement_bond: ctxt delegate]
-    Freeze the endorsement bond (See !Constants.endorsement_bond_cost)
+    Freeze the endorsement bond (See !Constants.endorsement_security_deposit)
     from the delegate account.
 
     Raise an error if the baker account does not have enough
diff --git a/src/proto_alpha/lib_protocol/src/constants_repr.ml b/src/proto_alpha/lib_protocol/src/constants_repr.ml
index a5126cb3d..ef04cebf0 100644
--- a/src/proto_alpha/lib_protocol/src/constants_repr.ml
+++ b/src/proto_alpha/lib_protocol/src/constants_repr.ml
@@ -25,7 +25,7 @@ let block_security_deposit =
   Tez_repr.(mul_exn one 512)
 
 (* 64 tez *)
-let endorsement_bond_cost =
+let endorsement_security_deposit =
   Tez_repr.(mul_exn one 64)
 
 (* 16 tez *)
diff --git a/src/proto_alpha/lib_protocol/test/test_endorsement.ml b/src/proto_alpha/lib_protocol/test/test_endorsement.ml
index d701bc007..36265cdd3 100644
--- a/src/proto_alpha/lib_protocol/test/test_endorsement.ml
+++ b/src/proto_alpha/lib_protocol/test/test_endorsement.ml
@@ -69,14 +69,14 @@ let test_endorsement_payment () =
       result.tezos_context protocol_data root.tezos_header.shell.timestamp
     >>=? fun baker_pub ->
     let baker_hpub = Ed25519.Public_key.hash baker_pub in
-    let endorsement_bond_cost =
-      Constants.endorsement_bond_cost in
+    let endorsement_security_deposit =
+      Constants.endorsement_security_deposit in
     let baking = baker_hpub = contract_p.hpub && block_priority < 4 in
     let block_security_deposit =
       if baking
       then Constants.block_security_deposit
       else Tez.zero in
-    let cost = Cast.tez_add endorsement_bond_cost block_security_deposit in
+    let cost = Cast.tez_add endorsement_security_deposit block_security_deposit in
     let expected_balance = Cast.tez_sub init_balance cost in
     Assert.equal_tez ~msg: __LOC__ expected_balance bond_balance ;
     (* After one cycle, (4 blocks in test/proto_alpha/sandbox),
@@ -86,7 +86,7 @@ let test_endorsement_payment () =
     get_balance_res contract_p result >>=? fun reward_balance ->
     Proto_alpha.Baking.endorsement_reward ~block_priority >>=? fun reward ->
     let expected_balance = Cast.tez_add expected_balance reward in
-    let expected_balance = Cast.tez_add expected_balance endorsement_bond_cost in
+    let expected_balance = Cast.tez_add expected_balance endorsement_security_deposit in
     Assert.equal_tez ~msg: __LOC__ expected_balance reward_balance ;
     return ()
   in