diff --git a/scripts/test/validate-build.ts b/scripts/test/validate-build.ts
index 3f15fca1136..230063255a4 100644
--- a/scripts/test/validate-build.ts
+++ b/scripts/test/validate-build.ts
@@ -335,7 +335,7 @@ async function validateModuleTreeshake(opts: BuildOptions, moduleName: string, e
 
   const bundle = await rollup({
     input: virtualInputId,
-    treeshake: true,
+    treeshake: 'smallest',
     plugins: [
       {
         name: 'stencilResolver',