diff --git a/src/resources/extensions/subagent/index.ts b/src/resources/extensions/subagent/index.ts
index 99ccc1bb8..ddcb833a5 100644
--- a/src/resources/extensions/subagent/index.ts
+++ b/src/resources/extensions/subagent/index.ts
@@ -23,7 +23,6 @@ import { StringEnum } from "@gsd/pi-ai";
 import { type ExtensionAPI, getMarkdownTheme } from "@gsd/pi-coding-agent";
 import { Container, Markdown, Spacer, Text } from "@gsd/pi-tui";
 import { Type } from "@sinclair/typebox";
-import { parseBundledExtensionPaths } from "../../../bundled-extension-paths.js";
 import { type AgentConfig, type AgentScope, discoverAgents } from "./agents.js";
 import {
 	type IsolationEnvironment,
@@ -333,7 +332,7 @@ async function runSingleAgent(
 		let wasAborted = false;
 
 		const exitCode = await new Promise<number>((resolve) => {
-			const bundledPaths = parseBundledExtensionPaths(process.env.GSD_BUNDLED_EXTENSION_PATHS);
+			const bundledPaths = (process.env.GSD_BUNDLED_EXTENSION_PATHS ?? "").split(path.delimiter).map(s => s.trim()).filter(Boolean);
 			const extensionArgs = bundledPaths.flatMap(p => ["--extension", p]);
 			const proc = spawn(
 				process.execPath,