diff --git a/packages/cli/src/lib/builder/config.ts b/packages/cli/src/lib/builder/config.ts
index acb0d6691d..6970cacefa 100644
--- a/packages/cli/src/lib/builder/config.ts
+++ b/packages/cli/src/lib/builder/config.ts
@@ -101,6 +101,7 @@ export async function makeRollupConfigs(
         format: 'module',
         sourcemap: true,
         preserveModules: true,
+        preserveModulesRoot: `${targetDir}/src`,
       });
       // Assume we're building for the browser if ESM output is included
       mainFields.unshift('browser');