diff --git a/ghost/core/core/cli/command.js b/ghost/core/core/cli/command.js
index da0c87dde38..24f841611fa 100644
--- a/ghost/core/core/cli/command.js
+++ b/ghost/core/core/cli/command.js
@@ -1,3 +1,10 @@
+// Register the tsx CommonJS loader so dev-only CLI commands (generate-data,
+// repl, timetravel) can require TypeScript modules directly. These commands run
+// via bare `node index.js <command>`, which — unlike `pnpm dev` (nodemon
+// --import=tsx) or the production build (tsc) — has no TS resolution otherwise.
+// They are restricted to development/local environments, where tsx is available.
+require('tsx/cjs');
+
 const cli = require('@tryghost/pretty-cli');
 const logging = cli.ui.log;
 const chalk = require('chalk');