diff --git a/package.json b/package.json
index 33b6a2b..73f8687 100644
--- a/package.json
+++ b/package.json
@@ -67,4 +67,4 @@
   "browserslist": [
     "last 1 chrome versions"
   ]
-}
+}
\ No newline at end of file
diff --git a/test/test.ts b/test/test.ts
index c4b76ba..ef8c42c 100644
--- a/test/test.ts
+++ b/test/test.ts
@@ -9,7 +9,8 @@ tap.test('should bundle test', async () => {
     process.cwd() + '/test',
     './ts_web/index.ts',
     './dist_manual/test.js',
-    'rollup'
+    'rollup',
+    {}
   );
 });
 
@@ -18,7 +19,9 @@ tap.test('should bundle production', async () => {
   await tsbundleInstance.buildProduction(
     process.cwd(),
     './test/ts_web/index.ts',
-    './test/dist_manual/production.js'
+    './test/dist_manual/production.js',
+    'rollup',
+    {}
   );
 });
 
diff --git a/ts/tsbundle.class.tsbundle.ts b/ts/tsbundle.class.tsbundle.ts
index c0b801b..12b0cda 100644
--- a/ts/tsbundle.class.tsbundle.ts
+++ b/ts/tsbundle.class.tsbundle.ts
@@ -2,7 +2,7 @@ import * as plugins from './tsbundle.plugins.js';
 import { logger } from './tsbundle.logging.js';
 
 export class TsBundle {
-  public async buildTest (
+  public async buildTest(
     cwdArg: string,
     fromArg: string,
     toArg: string,
@@ -11,7 +11,10 @@ export class TsBundle {
   ) {
     const done = plugins.smartpromise.defer();
     const threadsimple = new plugins.smartspawn.ThreadSimple(
-      plugins.path.join(plugins.smartpath.get.dirnameFromImportMetaUrl(import.meta.url), './tsbundle.class.tsbundleprocess.js'),
+      plugins.path.join(
+        plugins.smartpath.get.dirnameFromImportMetaUrl(import.meta.url),
+        './tsbundle.class.tsbundleprocess.js'
+      ),
       [],
       {
         env: {
@@ -21,7 +24,7 @@ export class TsBundle {
           tsbundleFrom: fromArg,
           tsbundleTo: toArg,
           tsbundleBundler: bundlerArg,
-          tsbundleArgv: argvArg,
+          tsbundleArgv: argvArg ? JSON.stringify(argvArg) : '{}',
         },
       }
     );
@@ -32,7 +35,7 @@ export class TsBundle {
     await done.promise;
   }
 
-  public async buildProduction (
+  public async buildProduction(
     cwdArg: string,
     fromArg: string,
     toArg: string,
@@ -41,7 +44,10 @@ export class TsBundle {
   ) {
     const done = plugins.smartpromise.defer();
     const threadsimple = new plugins.smartspawn.ThreadSimple(
-      plugins.path.join(plugins.smartpath.get.dirnameFromImportMetaUrl(import.meta.url), './tsbundle.class.tsbundleprocess.js'),
+      plugins.path.join(
+        plugins.smartpath.get.dirnameFromImportMetaUrl(import.meta.url),
+        './tsbundle.class.tsbundleprocess.js'
+      ),
       [],
       {
         env: {
@@ -51,7 +57,7 @@ export class TsBundle {
           tsbundleFrom: fromArg,
           tsbundleTo: toArg,
           tsbundleBundler: bundlerArg,
-          tsbundleArgv: argvArg,
+          tsbundleArgv: argvArg ? JSON.stringify(argvArg) : '{}',
         },
       }
     );
diff --git a/ts/tsbundle.class.tsbundleprocess.ts b/ts/tsbundle.class.tsbundleprocess.ts
index 8b39987..2f7fe94 100644
--- a/ts/tsbundle.class.tsbundleprocess.ts
+++ b/ts/tsbundle.class.tsbundleprocess.ts
@@ -44,16 +44,22 @@ export class TsBundleProcess {
           moduleResolution: 'node12',
           allowSyntheticDefaultImports: true,
           importsNotUsedAsValues: 'preserve',
-          ...argvArg && argvArg.skiplibcheck ? {
-            skipLibCheck: true
-          } : {},
-          ...argvArg && argvArg.allowimplicitany ? {
-            noImplicitAny: false
-          } : {},
-          ...argvArg && argvArg.commonjs ? {
-            module: 'commonjs',
-            moduleResolution: 'node',
-          } : {},
+          ...(argvArg && argvArg.skiplibcheck
+            ? {
+                skipLibCheck: true,
+              }
+            : {}),
+          ...(argvArg && argvArg.allowimplicitany
+            ? {
+                noImplicitAny: false,
+              }
+            : {}),
+          ...(argvArg && argvArg.commonjs
+            ? {
+                module: 'commonjs',
+                moduleResolution: 'node',
+              }
+            : {}),
         }),
         (plugins.rollupJson as any)(),
         // Allow node_modules resolution, so you can use 'external' to control
@@ -69,11 +75,19 @@ export class TsBundleProcess {
     return baseOptions;
   }
 
-  public getOptionsTest(fromArg: string, toArg: string, argvArg: any): plugins.rollup.RollupOptions {
+  public getOptionsTest(
+    fromArg: string,
+    toArg: string,
+    argvArg: any
+  ): plugins.rollup.RollupOptions {
     return this.getBaseOptions(fromArg, toArg, argvArg);
   }
 
-  public getOptionsProduction(fromArg: string, toArg: string, argvArg: any): plugins.rollup.RollupOptions {
+  public getOptionsProduction(
+    fromArg: string,
+    toArg: string,
+    argvArg: any
+  ): plugins.rollup.RollupOptions {
     const productionOptions = this.getBaseOptions(fromArg, toArg, argvArg);
     productionOptions.plugins.push(
       plugins.rollupTerser({
@@ -147,10 +161,14 @@ const run = async () => {
       process.env.tsbundleFrom,
       process.env.tsbundleTo,
       process.env.tsbundleBundler as 'rollup' | 'parcel',
-      process.env.tsbundleArgv
+      JSON.parse(process.env.tsbundleArgv)
     );
   } else {
-    tsbundleProcessInstance.buildProduction(process.env.tsbundleFrom, process.env.tsbundleTo, process.env.tsbundleArgv);
+    tsbundleProcessInstance.buildProduction(
+      process.env.tsbundleFrom,
+      process.env.tsbundleTo,
+      JSON.parse(process.env.tsbundleArgv)
+    );
   }
 };