diff --git a/src/index.js b/src/index.js
index 99e6a8fc..f65710f2 100644
--- a/src/index.js
+++ b/src/index.js
@@ -481,6 +481,7 @@ function createConfig(options, entry, format, writeMeta) {
 			},
 
 			treeshake: {
+				annotations: options.compress,
 				propertyReadSideEffects: false,
 			},