diff --git a/src/build/index.d.ts b/src/build/index.d.ts
index 927af93..1addb70 100644
--- a/src/build/index.d.ts
+++ b/src/build/index.d.ts
@@ -9,6 +9,8 @@ export type Options = {
   exclude?: Array<string>
   /** Directory where build output will be placed, e.g. `./dist` */
   outDir?: string
+  /** Optional path to a custom tsconfig file, defaults to `./tsconfig.json` */
+  tsconfigPath?: string
   /** Additional dependencies to externalize if not detected by `vite-plugin-externalize-deps` */
   externalDeps?: Array<string | RegExp>
 }
diff --git a/src/build/index.js b/src/build/index.js
index 21b1a9f..8946d15 100644
--- a/src/build/index.js
+++ b/src/build/index.js
@@ -17,12 +17,15 @@ export const tanstackBuildConfig = (options) => {
     plugins: [
       externalizeDeps({ include: options.externalDeps ?? [] }),
       preserveDirectives(),
-      tsconfigPaths(),
+      tsconfigPaths({
+        projects: options.tsconfigPath ? [options.tsconfigPath] : undefined,
+      }),
       dts({
         outDir: `${outDir}/esm`,
         entryRoot: options.srcDir,
         include: options.srcDir,
         exclude: options.exclude,
+        tsconfigPath: options.tsconfigPath,
         compilerOptions: {
           // @ts-expect-error
           module: 'esnext',
@@ -42,6 +45,7 @@ export const tanstackBuildConfig = (options) => {
         entryRoot: options.srcDir,
         include: options.srcDir,
         exclude: options.exclude,
+        tsconfigPath: options.tsconfigPath,
         compilerOptions: {
           // @ts-expect-error
           module: 'commonjs',