diff --git a/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalStateQuery/Type.hs b/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalStateQuery/Type.hs
index 2397c2b01e..2f257c1bc5 100644
--- a/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalStateQuery/Type.hs
+++ b/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalStateQuery/Type.hs
@@ -34,7 +34,7 @@ import Ouroboros.Network.Util.ShowProxy (ShowProxy (..))
 -- | The kind of the local state query protocol, and the types of
 -- the states in the protocol state machine.
 --
--- It is parametrised over the type of block (for points), the type of queries
+-- It is parameterised over the type of block (for points), the type of queries
 -- and query results.
 --
 type LocalStateQuery :: Type           -- ^ block
diff --git a/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalTxMonitor/Type.hs b/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalTxMonitor/Type.hs
index ee111fc0c0..c641bcf026 100644
--- a/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalTxMonitor/Type.hs
+++ b/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalTxMonitor/Type.hs
@@ -64,7 +64,7 @@ import Ouroboros.Network.Util.ShowProxy
 -- | The kind of the local transaction monitoring protocol, and the types of
 -- the states in the protocol state machine.
 --
--- It is parametrised over the type of transactions.
+-- It is parameterised over the type of transactions.
 --
 type LocalTxMonitor :: Type -> Type -> Type -> Type
 data LocalTxMonitor txid tx slot where
diff --git a/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalTxSubmission/Type.hs b/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalTxSubmission/Type.hs
index 8f9719d1ed..fabc5844ac 100644
--- a/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalTxSubmission/Type.hs
+++ b/ouroboros-network-protocols/src/Ouroboros/Network/Protocol/LocalTxSubmission/Type.hs
@@ -27,7 +27,7 @@ import Ouroboros.Network.Util.ShowProxy
 -- | The kind of the local transaction-submission protocol, and the types of
 -- the states in the protocol state machine.
 --
--- It is parametrised over the type of transactions and the type of reasons
+-- It is parameterised over the type of transactions and the type of reasons
 -- used when rejecting a transaction.
 --
 type LocalTxSubmission :: Type -> Type -> Type