diff --git a/src/store.ts b/src/store.ts
index 5ccf761c..6cf18168 100644
--- a/src/store.ts
+++ b/src/store.ts
@@ -286,6 +286,7 @@ export function useStore(
         setFile(files.value, filename, saved[filename])
       }
     }
+    applyBuiltinImportMap()
   }
   const getFiles: ReplStore['getFiles'] = () => {
     const exported: Record<string, string> = {}