diff --git a/.changeset/cold-scissors-compete.md b/.changeset/cold-scissors-compete.md
new file mode 100644
index 0000000..18e7e1d
--- /dev/null
+++ b/.changeset/cold-scissors-compete.md
@@ -0,0 +1,8 @@
+---
+'eslint-config-seek': minor
+---
+
+Add [export][docs] as an error.
+This disallows repeated exports of names or defaults.
+
+[docs]: https://github.com/import-js/eslint-plugin-import/blob/v2.29.1/docs/rules/export.md
diff --git a/base.js b/base.js
index 52cdbb8..6c753bc 100644
--- a/base.js
+++ b/base.js
@@ -190,6 +190,7 @@ module.exports = [
       // However, there is a pending PR which improves the behaviour of this rule https://github.com/import-js/eslint-plugin-import/pull/2716
       // https://github.com/import-js/eslint-plugin-import/blob/main/docs/rules/no-duplicates.md#inline-type-imports
       'import-x/no-duplicates': [ERROR, { 'prefer-inline': true }],
+      'import-x/export': ERROR,
     },
   },
   {
@@ -207,6 +208,7 @@ module.exports = [
         { commonjs: true, amd: true, ignore: ['.svg$', '^file?'] },
       ],
       'import-x/no-duplicates': ERROR,
+      'import-x/export': ERROR,
     },
   },
   {