diff --git a/hydra-node/json-schemas/api.yaml b/hydra-node/json-schemas/api.yaml
index d3f2ce58f5f..3c73a3e0faf 100644
--- a/hydra-node/json-schemas/api.yaml
+++ b/hydra-node/json-schemas/api.yaml
@@ -611,11 +611,11 @@ components:
         type: object
         additionalProperties: false
         required:
-          - snapshot
+          - initialUTxO
           - tag
         properties:
-          snapshot:
-            $ref: "#/components/schemas/Snapshot"
+          initialUTxO:
+            $ref: "#/components/schemas/UTxO"
           tag:
             type: string
             enum: ["InitialSnapshot"]
diff --git a/hydra-node/src/Hydra/Chain/Direct/Context.hs b/hydra-node/src/Hydra/Chain/Direct/Context.hs
index e8be256746d..774c555a664 100644
--- a/hydra-node/src/Hydra/Chain/Direct/Context.hs
+++ b/hydra-node/src/Hydra/Chain/Direct/Context.hs
@@ -199,7 +199,7 @@ genStClosed ctx utxo = do
   let (sn, snapshot, toFanout) = case confirmed of
         InitialSnapshot{} ->
           ( 0
-          , InitialSnapshot {initialUtxo = u0}
+          , InitialSnapshot {initialUTxO = u0}
           , u0
           )
         ConfirmedSnapshot{snapshot = snap, signatures} ->
diff --git a/hydra-node/src/Hydra/Snapshot.hs b/hydra-node/src/Hydra/Snapshot.hs
index c7bb66c81e7..4eafd6ebc04 100644
--- a/hydra-node/src/Hydra/Snapshot.hs
+++ b/hydra-node/src/Hydra/Snapshot.hs
@@ -70,7 +70,7 @@ instance (FromCBOR tx, FromCBOR (UTxOType tx)) => FromCBOR (Snapshot tx) where
 
 -- | A snapshot that can be used to close a head with. Either the initial one, or when it was signed by all parties, i.e. it is confirmed.
 data ConfirmedSnapshot tx
-  = InitialSnapshot { initialUtxo :: UTxOType tx }
+  = InitialSnapshot { initialUTxO :: UTxOType tx }
   | ConfirmedSnapshot
       { snapshot :: Snapshot tx
       , signatures :: MultiSignature (Snapshot tx)
@@ -86,10 +86,10 @@ data ConfirmedSnapshot tx
 -- | Safely get a 'Snapshot' from a confirmed snapshot.
 getSnapshot :: ConfirmedSnapshot tx -> Snapshot tx
 getSnapshot = \case
-  InitialSnapshot{initialUtxo} ->
+  InitialSnapshot{initialUTxO} ->
     Snapshot
     { number = 0
-    , utxo = initialUtxo
+    , utxo = initialUTxO
     , confirmed = []
     }
   ConfirmedSnapshot{snapshot} -> snapshot