diff --git a/package-lock.json b/package-lock.json
index ead72a1..df5917b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,7 +5,7 @@
   "requires": true,
   "packages": {
     "": {
-      "version": "1.1.3",
+      "version": "1.2.0",
       "license": "MIT",
       "dependencies": {
         "postcss-selector-parser": "^6.0.4"
@@ -33,6 +33,8 @@
         "standard-version": "^9.0.0",
         "tailwindcss": "^2.0.3",
         "ts-node": "^9.0.0",
+        "ts-transform-default-export": "^1.0.3",
+        "ttypescript": "^1.5.12",
         "typedoc": "^0.19.0",
         "typescript": "^4.0.2"
       },
@@ -12051,6 +12053,15 @@
         "node": ">=10.0.0"
       }
     },
+    "node_modules/ts-transform-default-export": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/ts-transform-default-export/-/ts-transform-default-export-1.0.3.tgz",
+      "integrity": "sha512-YDknVWAZtrmMNpSiJ5r2/pWmD2lYPSGZrfCj2GM44zBwgfpL7FyEgnGWSIqPf5ITkqEfsE2ewJsWBUrYv6x+0A==",
+      "dev": true,
+      "peerDependencies": {
+        "typescript": ">=3.0.0"
+      }
+    },
     "node_modules/tsconfig-paths": {
       "version": "3.9.0",
       "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.9.0.tgz",
@@ -12081,6 +12092,23 @@
         "node": ">= 6"
       }
     },
+    "node_modules/ttypescript": {
+      "version": "1.5.12",
+      "resolved": "https://registry.npmjs.org/ttypescript/-/ttypescript-1.5.12.tgz",
+      "integrity": "sha512-1ojRyJvpnmgN9kIHmUnQPlEV1gq+VVsxVYjk/NfvMlHSmYxjK5hEvOOU2MQASrbekTUiUM7pR/nXeCc8bzvMOQ==",
+      "dev": true,
+      "dependencies": {
+        "resolve": ">=1.9.0"
+      },
+      "bin": {
+        "ttsc": "bin/tsc",
+        "ttsserver": "bin/tsserver"
+      },
+      "peerDependencies": {
+        "ts-node": ">=8.0.2",
+        "typescript": ">=3.2.2"
+      }
+    },
     "node_modules/type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
@@ -22219,6 +22247,13 @@
         "yn": "3.1.1"
       }
     },
+    "ts-transform-default-export": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/ts-transform-default-export/-/ts-transform-default-export-1.0.3.tgz",
+      "integrity": "sha512-YDknVWAZtrmMNpSiJ5r2/pWmD2lYPSGZrfCj2GM44zBwgfpL7FyEgnGWSIqPf5ITkqEfsE2ewJsWBUrYv6x+0A==",
+      "dev": true,
+      "requires": {}
+    },
     "tsconfig-paths": {
       "version": "3.9.0",
       "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.9.0.tgz",
@@ -22246,6 +22281,15 @@
         "tslib": "^1.8.1"
       }
     },
+    "ttypescript": {
+      "version": "1.5.12",
+      "resolved": "https://registry.npmjs.org/ttypescript/-/ttypescript-1.5.12.tgz",
+      "integrity": "sha512-1ojRyJvpnmgN9kIHmUnQPlEV1gq+VVsxVYjk/NfvMlHSmYxjK5hEvOOU2MQASrbekTUiUM7pR/nXeCc8bzvMOQ==",
+      "dev": true,
+      "requires": {
+        "resolve": ">=1.9.0"
+      }
+    },
     "type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
diff --git a/package.json b/package.json
index 49f62c1..4f02710 100644
--- a/package.json
+++ b/package.json
@@ -16,8 +16,8 @@
   ],
   "scripts": {
     "build": "run-p build:*",
-    "build:main": "tsc -p tsconfig.json",
-    "build:module": "tsc -p tsconfig.module.json",
+    "build:main": "ttsc -p tsconfig.json",
+    "build:module": "ttsc -p tsconfig.module.json",
     "fix": "run-s fix:*",
     "fix:prettier": "prettier \"src/**/*.ts\" --write",
     "fix:lint": "eslint src --ext .ts --fix",
@@ -29,7 +29,7 @@
     "check-cli": "run-s test diff-integration-tests check-integration-tests",
     "check-integration-tests": "run-s check-integration-test:*",
     "diff-integration-tests": "mkdir -p diff && rm -rf diff/test && cp -r test diff/test && rm -rf diff/test/test-*/.git && cd diff && git init --quiet && git add -A && git commit --quiet --no-verify --allow-empty -m 'WIP' && echo '\\n\\nCommitted most recent integration test output in the \"diff\" directory. Review the changes with \"cd diff && git diff HEAD\" or your preferred git diff viewer.'",
-    "watch:build": "tsc -p tsconfig.json -w",
+    "watch:build": "ttsc -p tsconfig.json -w",
     "watch:test": "nyc --silent ava --watch",
     "cov": "run-s build test:unit cov:html cov:lcov && open-cli coverage/index.html",
     "cov:html": "nyc report --reporter=html",
@@ -77,6 +77,8 @@
     "standard-version": "^9.0.0",
     "tailwindcss": "^2.0.3",
     "ts-node": "^9.0.0",
+    "ts-transform-default-export": "^1.0.3",
+    "ttypescript": "^1.5.12",
     "typedoc": "^0.19.0",
     "typescript": "^4.0.2"
   },
diff --git a/src/index.ts b/src/index.ts
index b528a17..1c39fa2 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,7 +1,7 @@
 import selectorParser, { Node } from 'postcss-selector-parser';
 import plugin from 'tailwindcss/plugin';
 
-export default plugin(({ theme, addVariant, prefix, e: escape }) => {
+const nestedGroupPlugin = plugin(({ theme, addVariant, prefix, e: escape }) => {
   const groupLevel = theme('groupLevel') || 10;
   const groupScope = theme('groupScope') || 'scope';
   const groupVariants = theme('groupVariants') || ['hover', 'focus'];
@@ -49,3 +49,5 @@ export default plugin(({ theme, addVariant, prefix, e: escape }) => {
     });
   });
 });
+
+export default nestedGroupPlugin;
diff --git a/tsconfig.json b/tsconfig.json
index fbf1432..11ba98e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "compilerOptions": {
     "incremental": true,
-    "target": "es2017",
+    "target": "ES3",
     "outDir": "build/main",
     "rootDir": "src",
     "moduleResolution": "node",
@@ -40,7 +40,10 @@
     "skipLibCheck": true,
     "lib": ["es2017"],
     "types": ["node"],
-    "typeRoots": ["node_modules/@types", "src/types"]
+    "typeRoots": ["node_modules/@types", "src/types"],
+    "plugins": [{
+      "transform": "ts-transform-default-export",
+    }]
   },
   "include": ["src/**/*.ts"],
   "exclude": ["node_modules/**"],
diff --git a/tsconfig.module.json b/tsconfig.module.json
index dfb74fa..be5abb2 100644
--- a/tsconfig.module.json
+++ b/tsconfig.module.json
@@ -3,7 +3,8 @@
   "compilerOptions": {
     "target": "esnext",
     "outDir": "build/module",
-    "module": "esnext"
+    "module": "esnext",
+    "plugins": []
   },
   "exclude": [
     "node_modules/**"