diff --git a/src/DotNetLightning.Core/Channel/ChannelTypes.fs b/src/DotNetLightning.Core/Channel/ChannelTypes.fs
index 499d4c401..0c5539a7b 100644
--- a/src/DotNetLightning.Core/Channel/ChannelTypes.fs
+++ b/src/DotNetLightning.Core/Channel/ChannelTypes.fs
@@ -3,7 +3,6 @@ namespace DotNetLightning.Channel
 open DotNetLightning.Chain
 open DotNetLightning.Utils
 open DotNetLightning.Utils.Aether
-open DotNetLightning.DomainUtils.Types
 open DotNetLightning.Serialization.Msgs
 open DotNetLightning.Transactions
 open DotNetLightning.Crypto
@@ -25,8 +24,6 @@ open NBitcoin
 
 [<AutoOpen>]
 module Data =
-    type IChannelStateData = interface inherit IStateData end
-
     type NegotiatingState = {
         LocalRequestedShutdown: Option<ShutdownScriptPubKey>
         RemoteRequestedShutdown: Option<ShutdownScriptPubKey>
diff --git a/src/DotNetLightning.Core/DomainUtils/Types.fs b/src/DotNetLightning.Core/DomainUtils/Types.fs
deleted file mode 100644
index 1b9a2d09d..000000000
--- a/src/DotNetLightning.Core/DomainUtils/Types.fs
+++ /dev/null
@@ -1,7 +0,0 @@
-namespace DotNetLightning.DomainUtils.Types
-
-type IState = interface end
-type IStateData = interface end
-type ICommand = interface end
-type IEvent = interface end
-
diff --git a/src/DotNetLightning.Core/DotNetLightning.Core.fsproj b/src/DotNetLightning.Core/DotNetLightning.Core.fsproj
index cf09a5607..aab5bc9c2 100644
--- a/src/DotNetLightning.Core/DotNetLightning.Core.fsproj
+++ b/src/DotNetLightning.Core/DotNetLightning.Core.fsproj
@@ -64,7 +64,6 @@
     <Compile Include="Crypto/ShaChain.fs" />
     <Compile Include="Crypto\Aezeed.fs" />
     <Compile Include="Crypto/Sphinx.fs" />
-    <Compile Include="DomainUtils/Types.fs" />
     <Compile Include="Transactions\TransactionError.fs" />
     <Compile Include="Transactions/CommitmentSpec.fs" />
     <Compile Include="Transactions/Scripts.fs" />
diff --git a/src/DotNetLightning.Core/Transactions/Scripts.fs b/src/DotNetLightning.Core/Transactions/Scripts.fs
index bde39ced3..5570f6d00 100644
--- a/src/DotNetLightning.Core/Transactions/Scripts.fs
+++ b/src/DotNetLightning.Core/Transactions/Scripts.fs
@@ -1,6 +1,5 @@
 namespace DotNetLightning.Transactions
 
-open DotNetLightning.DomainUtils.Types
 open NBitcoin
 open NBitcoin.Crypto
 open DotNetLightning.Utils