diff --git a/packages/browser-pyright/src/browserWorkersHost.ts b/packages/browser-pyright/src/browserWorkersHost.ts
index cbaeffaa43..94afe3bfc4 100644
--- a/packages/browser-pyright/src/browserWorkersHost.ts
+++ b/packages/browser-pyright/src/browserWorkersHost.ts
@@ -1,3 +1,4 @@
+import { getDiagnosticRulesets } from 'pyright-internal/common/configOptions';
 import {
     Transferable,
     WorkersHost,
@@ -29,6 +30,7 @@ export class BrowserWorkersHost implements WorkersHost {
                 type: 'browser/newWorker',
                 initialData,
                 port: channel.port1,
+                diagnosticRulesets: getDiagnosticRulesets(),
             },
             [channel.port1]
         );
diff --git a/packages/pyright-internal/src/common/configOptions.ts b/packages/pyright-internal/src/common/configOptions.ts
index 1f243c2c6f..f2f10be1ce 100644
--- a/packages/pyright-internal/src/common/configOptions.ts
+++ b/packages/pyright-internal/src/common/configOptions.ts
@@ -1272,6 +1272,17 @@ export function getStrictDiagnosticRuleSet(): DiagnosticRuleSet {
 
 export const allTypeCheckingModes = ['off', 'basic', 'standard', 'strict', 'recommended', 'all'] as const;
 
+export const getDiagnosticRulesets = () =>
+    [...getBooleanDiagnosticRules(true), ...getDiagLevelDiagnosticRules()].map((rule) => ({
+        'Diagnostic Rule': rule,
+        ...Object.fromEntries(
+            allTypeCheckingModes.map((typeCheckingMode) => [
+                typeCheckingMode,
+                ConfigOptions.getDiagnosticRuleSet(typeCheckingMode)[rule],
+            ])
+        ),
+    }));
+
 export function matchFileSpecs(configOptions: ConfigOptions, uri: Uri, isFile = true) {
     for (const includeSpec of configOptions.include) {
         if (FileSpec.matchIncludeFileSpec(includeSpec.regExp, configOptions.exclude, uri, isFile)) {
diff --git a/packages/pyright-internal/src/pyright.ts b/packages/pyright-internal/src/pyright.ts
index 9771b215ad..69f8f31dd0 100644
--- a/packages/pyright-internal/src/pyright.ts
+++ b/packages/pyright-internal/src/pyright.ts
@@ -50,12 +50,7 @@ import { convertDiagnostics } from 'pyright-to-gitlab-ci/src/converter';
 import path from 'path';
 import { BaselineHandler } from './baseline';
 import { pluralize } from './common/stringUtils';
-import {
-    allTypeCheckingModes,
-    ConfigOptions,
-    getBooleanDiagnosticRules,
-    getDiagLevelDiagnosticRules,
-} from './common/configOptions';
+import { getDiagnosticRulesets } from './common/configOptions';
 
 type SeverityLevel = 'error' | 'warning' | 'information';
 
@@ -203,19 +198,7 @@ async function processArgs(): Promise<ExitStatus> {
         return ExitStatus.ParameterError;
     }
     if (args.printdiagnosticrulesets) {
-        console.log(
-            JSON.stringify(
-                [...getBooleanDiagnosticRules(true), ...getDiagLevelDiagnosticRules()].map((rule) => ({
-                    'Diagnostic Rule': rule,
-                    ...Object.fromEntries(
-                        allTypeCheckingModes.map((typeCheckingMode) => [
-                            typeCheckingMode,
-                            ConfigOptions.getDiagnosticRuleSet(typeCheckingMode)[rule],
-                        ])
-                    ),
-                }))
-            )
-        );
+        console.log(JSON.stringify(getDiagnosticRulesets()));
         return ExitStatus.NoErrors;
     }
     if (args.help !== undefined) {