diff --git a/vite-component-dev.config.ts b/vite-component-dev.config.ts
index 2e6783820..804b3d1f1 100644
--- a/vite-component-dev.config.ts
+++ b/vite-component-dev.config.ts
@@ -9,7 +9,7 @@ import { defineConfig, searchForWorkspaceRoot } from "vite";
 import { realpathSync } from "node:fs";
 import * as fs from "node:fs";
 
-import { vitePluginsConfig } from "./vite.config";
+import { vitePluginsConfig } from "./vite.config.ts";
 import { scopeStylesToRoot } from "./component/build/scopeStylesToRoot";
 
 // Serves the harness under `component/dev`, which embeds Element Call as a
diff --git a/vite-component.config.ts b/vite-component.config.ts
index ae0ac1508..09a70ee43 100644
--- a/vite-component.config.ts
+++ b/vite-component.config.ts
@@ -7,7 +7,7 @@ Please see LICENSE in the repository root for full details.
 
 import { defineConfig } from "vite";
 
-import { vitePluginsConfig } from "./vite.config";
+import { vitePluginsConfig } from "./vite.config.ts";
 import { scopeStylesToRoot } from "./component/build/scopeStylesToRoot";
 
 // Config for Element Call as a React component, to be imported by an
diff --git a/vite-embedded.config.ts b/vite-embedded.config.ts
index 228d2cf8f..36f2779b2 100644
--- a/vite-embedded.config.ts
+++ b/vite-embedded.config.ts
@@ -8,7 +8,7 @@ Please see LICENSE in the repository root for full details.
 import { defineConfig, mergeConfig } from "vite";
 import generateFile from "vite-plugin-generate-file";
 
-import fullConfig from "./vite.config";
+import fullConfig from "./vite.config.ts";
 
 const base = "./";
 
diff --git a/vitest.config.ts b/vitest.config.ts
index 81519325a..d6f67f89a 100644
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -1,6 +1,6 @@
 import { defineConfig, mergeConfig } from "vitest/config";
 import { playwright } from "@vitest/browser-playwright";
-import { vitePluginsConfig } from "./vite.config";
+import { vitePluginsConfig } from "./vite.config.ts";
 import { storybookTest } from "@storybook/addon-vitest/vitest-plugin";
 import path from "node:path";
 import { fileURLToPath } from "node:url";