diff --git a/server.js b/server.js
index b5f26e0..37b5d84 100644
--- a/server.js
+++ b/server.js
@@ -97,7 +97,7 @@ function h3ConsoleFetch(pathAndQuery, options) {
 // own past-entry trimming naturally handles a state file that's gone stale
 // (server was down long enough that every persisted entry is in the past).
 const FILLER_DURATION_MS = 30000; // keep the schedule filled at least this far ahead
-const H3_GEN_PARAMS = { width: 832, height: 480, frames: 120, steps: 20, turbo: false, seed: 0 };
+const H3_GEN_PARAMS = { width: 480, height: 832, frames: 120, steps: 20, turbo: false, seed: 0 };
 const FPS = 24;
 
 const initialLiveState = loadLiveState();