diff --git a/package.json b/package.json
index 9038d039..f5176b1b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vue/repl",
-  "version": "1.3.6",
+  "version": "1.4.0",
   "description": "Vue component for editing Vue components",
   "main": "dist/ssr-stub.js",
   "module": "dist/vue-repl.js",
diff --git a/src/Repl.vue b/src/Repl.vue
index f7874fd9..bb5422b8 100644
--- a/src/Repl.vue
+++ b/src/Repl.vue
@@ -25,10 +25,26 @@ const props = withDefaults(defineProps<Props>(), {
   ssr: false
 })
 
-props.store.options = props.sfcOptions
-props.store.init()
+const { store } = props
+const sfcOptions = (store.options = props.sfcOptions || {})
+if (!sfcOptions.script) {
+  sfcOptions.script = {}
+}
+// @ts-ignore only needed in 3.3
+sfcOptions.script.fs = {
+  fileExists(file: string) {
+    if (file.startsWith('/')) file = file.slice(1)
+    return !!store.state.files[file]
+  },
+  readFile(file: string) {
+    if (file.startsWith('/')) file = file.slice(1)
+    return store.state.files[file].code
+  }
+}
+
+store.init()
 
-provide('store', props.store)
+provide('store', store)
 provide('autoresize', props.autoResize)
 provide('import-map', toRef(props, 'showImportMap'))
 provide('clear-console', toRef(props, 'clearConsole'))