diff --git a/packages/purgecss-webpack-plugin/src/index.ts b/packages/purgecss-webpack-plugin/src/index.ts
index a77ae101..f5b6fcf3 100644
--- a/packages/purgecss-webpack-plugin/src/index.ts
+++ b/packages/purgecss-webpack-plugin/src/index.ts
@@ -102,7 +102,7 @@ export default class PurgeCSSPlugin {
         if (typeof options.safelist === "function") {
           options.safelist = options.safelist();
         }
-        
+
         if (typeof options.blocklist === "function") {
           options.blocklist = options.blocklist();
         }
diff --git a/packages/purgecss-webpack-plugin/src/types/index.ts b/packages/purgecss-webpack-plugin/src/types/index.ts
index fc85bb69..6de1a09c 100644
--- a/packages/purgecss-webpack-plugin/src/types/index.ts
+++ b/packages/purgecss-webpack-plugin/src/types/index.ts
@@ -17,8 +17,8 @@ export interface Extractors {
 }
 
 type PathFunction = () => string[];
-
 type SafelistFunction = () => ComplexSafelist;
+type BlocklistFunction = () => StringRegExpArray;
 
 export interface UserDefinedOptions {
   paths: string[] | PathFunction;
@@ -34,7 +34,7 @@ export interface UserDefinedOptions {
   variables?: boolean;
   verbose?: boolean;
   safelist?: StringRegExpArray | ComplexSafelist | SafelistFunction;
-  blocklist?: StringRegExpArray;
+  blocklist?: StringRegExpArray | BlocklistFunction;
   only?: string[];
 }
 
diff --git a/packages/rollup-plugin-purgecss/__tests__/index.test.ts b/packages/rollup-plugin-purgecss/__tests__/index.test.ts
index 4ba64a7f..427364a2 100644
--- a/packages/rollup-plugin-purgecss/__tests__/index.test.ts
+++ b/packages/rollup-plugin-purgecss/__tests__/index.test.ts
@@ -14,7 +14,7 @@ describe("rollup-plugin-purgecss", () => {
         }),
       ],
     });
-    await bundle.generate({ format: "cjs" });
+    await bundle.generate({ format: "cjs", exports: "auto" });
 
     const actualA = fs
       .readFileSync(path.resolve(__dirname, "assets/actual_a.css"))