diff --git a/README.md b/README.md
index 8400fed..247465c 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # IndexedDB with usability.
 
-This is a tiny (~1.08k brotli'd) library that mostly mirrors the IndexedDB API, but with small improvements that make a big difference to usability.
+This is a tiny (~1.09k brotli'd) library that mostly mirrors the IndexedDB API, but with small improvements that make a big difference to usability.
 
 1. [Installation](#installation)
 1. [Changes](#changes)
diff --git a/rollup.config.js b/rollup.config.js
index 72163ee..8c068ab 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -43,6 +43,7 @@ export default async function ({ watch }) {
     output: {
       file: 'build/iife/index-min.js',
       format: 'iife',
+      esModule: false,
       name: 'idb',
     },
   });
@@ -58,6 +59,7 @@ export default async function ({ watch }) {
     output: {
       file: 'build/iife/with-async-ittr-min.js',
       format: 'iife',
+      esModule: false,
       name: 'idb',
     },
   });