diff --git a/guide/age-of-four/src/simulation/simulation.worker.ts b/guide/age-of-four/src/simulation/simulation.worker.ts
index dc850fc4..b225bc36 100644
--- a/guide/age-of-four/src/simulation/simulation.worker.ts
+++ b/guide/age-of-four/src/simulation/simulation.worker.ts
@@ -183,6 +183,7 @@ async function prebufferFrames(state: ScenarioState, scenarioId: string, frameCo
         frames.push({
           texA: snap.texA,
           texB: snap.texB,
+          texC: snap.texC,
           width: snap.width,
           height: snap.height,
           turn: snap.turn,
@@ -191,7 +192,7 @@ async function prebufferFrames(state: ScenarioState, scenarioId: string, frameCo
           ley_edges: snap.ley_edges,
           wonder_positions: snap.wonder_positions,
         })
-        transferables.push(snap.texA.buffer as ArrayBuffer, snap.texB.buffer as ArrayBuffer)
+        transferables.push(snap.texA.buffer as ArrayBuffer, snap.texB.buffer as ArrayBuffer, snap.texC.buffer as ArrayBuffer)
       }
 
       post(
@@ -378,6 +379,7 @@ function handleFrame(scenarioId: string, turn: number, lookahead: number): void
     frames.push({
       texA: snap.texA,
       texB: snap.texB,
+      texC: snap.texC,
       width: snap.width,
       height: snap.height,
       turn: snap.turn,
@@ -386,7 +388,7 @@ function handleFrame(scenarioId: string, turn: number, lookahead: number): void
       ley_edges: snap.ley_edges,
       wonder_positions: snap.wonder_positions,
     })
-    transferables.push(snap.texA.buffer as ArrayBuffer, snap.texB.buffer as ArrayBuffer)
+    transferables.push(snap.texA.buffer as ArrayBuffer, snap.texB.buffer as ArrayBuffer, snap.texC.buffer as ArrayBuffer)
   }
 
   post(