diff --git a/lib/index.js b/lib/index.js
index 8e0d78e..06191e0 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -7,6 +7,8 @@ module.exports = async bundler => {
       : Array.from(bundle.childBundles);
 
     for (const bundleItem of bundles) {
+      if (bundleItem.type !== 'html') continue;
+
       const importsManager = new ImportsManager(bundleItem);
       importsManager.updateEntryFileImports();
       importsManager.wrapImportFilesCode();
diff --git a/package-lock.json b/package-lock.json
index 85b099f..10f169e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "parcel-plugin-gas-imports",
-  "version": "1.0.0",
+  "version": "1.0.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index a3ee93a..2ce5674 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "parcel-plugin-gas-imports",
-  "version": "1.0.2",
+  "version": "1.0.3",
   "description": "Parcel plugin that enables bundling of Google App Script HTML.",
   "main": "./lib/index.js",
   "scripts": {