diff --git a/lib/index.js b/lib/index.js
index 15897b2..bf497bf 100755
--- a/lib/index.js
+++ b/lib/index.js
@@ -76,6 +76,8 @@ exports.Boom = class Boom extends Error {
         return this.output.statusCode >= 500;
     }
 
+    set isServer(value) {}                                             // Allow for compatiblity with legacy boom
+
     constructor(message, options = {}) {
 
         const { statusCode = 500, data, headers, ctor = exports.Boom } = options;
@@ -83,7 +85,7 @@ exports.Boom = class Boom extends Error {
         super(message ?? internals.codes.get(statusCode) ?? 'Unknown', options);
         Error.captureStackTrace(this, ctor);                           // Filter the stack to our external API
 
-        this.#apply(data, statusCode, headers);
+        internals.apply(this, data, statusCode, headers);
     }
 
     static [Symbol.hasInstance](instance) {
@@ -102,53 +104,58 @@ exports.Boom = class Boom extends Error {
         this.output.payload = new internals.PayloadObject(this, this.output.statusCode, debug);
     }
 
-    #apply(data, statusCode, headers, message) {
+    static {
+        Object.defineProperty(this.prototype, 'name', { value: 'Boom', writable: true, configurable: true });
+        Object.defineProperty(this.prototype, 'isBoom', { value: true, writable: true, configurable: true });
 
-        if (data !== undefined) {
-            this.data = data;
-        }
+        exports.isBoom = function (err, statusCode) {
 
-        if (statusCode) {
-            const numberCode = parseInt(statusCode, 10);
-            if (isNaN(numberCode) || numberCode < 400) {
-                throw new TypeError(`statusCode must be a number (400+): ${statusCode}`);
-            }
+            return err instanceof Error && !!err.isBoom && (!statusCode || err.output.statusCode === statusCode);
+        };
 
-            if (message) {
-                this.message = `${message}: ${this.message}`;
-            }
+    }
+};
 
-            const payload = new internals.PayloadObject(this, numberCode, false);
-            this.output = new internals.BoomOutput(numberCode, payload, headers);
-        }
+
+exports.boomify = function (err, options = {}) {
+
+    const { override, data, statusCode, message } = options;
+
+    if (!err?.isBoom) {
+        return new exports.Boom(message, { statusCode, cause: err, data });
     }
 
-    static {
-        Object.defineProperty(this.prototype, 'name', { value: 'Boom', writable: true, configurable: true });
-        Object.defineProperty(this.prototype, 'isBoom', { value: true, configurable: true });
+    if (override === false) {                                 // Defaults to true
+        internals.apply(err, data);
+    }
+    else {
+        internals.apply(err, data, statusCode ?? err.output.statusCode, {}, message);
+    }
 
-        exports.isBoom = function (err, statusCode) {
+    err.isServer = err.output.statusCode >= 500;              // Assign, in case it is a legacy boom object
 
-            return err instanceof Error && !!err.isBoom && (!statusCode || err.output.statusCode === statusCode);
-        };
+    return err;
+};
 
-        exports.boomify = function (err, options = {}) {
 
-            const { override, data, statusCode, message } = options;
+internals.apply = function (boom, data, statusCode, headers, message) {
 
-            if (!err?.isBoom) {
-                return new exports.Boom(message, { statusCode, cause: err, data });
-            }
+    if (data !== undefined) {
+        boom.data = data;
+    }
 
-            if (override === false) {                                 // Defaults to true
-                err.#apply(data);
-            }
-            else {
-                err.#apply(data, statusCode ?? err.output.statusCode, {}, message);
-            }
+    if (statusCode) {
+        const numberCode = parseInt(statusCode, 10);
+        if (isNaN(numberCode) || numberCode < 400) {
+            throw new TypeError(`statusCode must be a number (400+): ${statusCode}`);
+        }
 
-            return err;
-        };
+        if (message) {
+            boom.message = `${message}: ${boom.message}`;
+        }
+
+        const payload = new internals.PayloadObject(boom, numberCode, false);
+        boom.output = new internals.BoomOutput(numberCode, payload, headers);
     }
 };
 
diff --git a/package.json b/package.json
index 3bae608..1fea125 100644
--- a/package.json
+++ b/package.json
@@ -25,10 +25,11 @@
     "@hapi/eslint-plugin": "*",
     "@hapi/lab": "^25.1.0",
     "@types/node": "^17.0.31",
-    "typescript": "~4.6.4"
+    "typescript": "~4.6.4",
+    "@hapi/boom10": "npm:@hapi/boom@^10.0.1"
   },
   "scripts": {
-    "test": "lab -a @hapi/code -t 100 -L -Y",
+    "test": "lab -a @hapi/code -t 100 -L",
     "test-cov-html": "lab -a @hapi/code -t 100 -L -r html -o coverage.html"
   },
   "license": "BSD-3-Clause"
diff --git a/test/index.js b/test/index.js
index 34152a5..ee4bc60 100755
--- a/test/index.js
+++ b/test/index.js
@@ -1,6 +1,7 @@
 'use strict';
 
 const Boom = require('..');
+const Boom10 = require('@hapi/boom10');
 const Code = require('@hapi/code');
 const Lab = require('@hapi/lab');
 
@@ -107,6 +108,7 @@ describe('Boom', () => {
             const BadaBoom = class extends Boom.Boom {};
 
             expect(new Boom.Boom('oops')).to.be.instanceOf(Boom.Boom);
+            expect(new Boom10.Boom('oops')).to.be.instanceOf(Boom.Boom);
             expect(new BadaBoom('oops')).to.be.instanceOf(Boom.Boom);
             expect(Boom.badRequest('oops')).to.be.instanceOf(Boom.Boom);
             expect(new Error('oops')).to.not.be.instanceOf(Boom.Boom);
@@ -128,6 +130,12 @@ describe('Boom', () => {
             expect(new Boom.Boom('oops')).to.not.be.instanceOf(BadaBoom);
             expect(Boom.badRequest('oops')).to.not.be.instanceOf(BadaBoom);
         });
+
+        it('works from legacy boom', () => {
+
+            expect(new Boom.Boom('oops')).to.be.instanceOf(Boom10.Boom);
+            expect(new Boom10.Boom('oops')).to.be.instanceOf(Boom10.Boom);
+        });
     });
 
     describe('isBoom()', () => {
@@ -137,6 +145,7 @@ describe('Boom', () => {
             // Success
 
             expect(Boom.isBoom(new Boom.Boom('oops'))).to.be.true();
+            expect(Boom.isBoom(new Boom10.Boom('oops'))).to.be.true();
 
             // Fail
 
@@ -148,11 +157,19 @@ describe('Boom', () => {
         it('returns true for valid boom object and valid status code', () => {
 
             expect(Boom.isBoom(Boom.notFound(),404)).to.be.true();
+            expect(Boom.isBoom(Boom10.notFound(), 404)).to.be.true();
         });
 
         it('returns false for valid boom object and wrong status code', () => {
 
-            expect(Boom.isBoom(Boom.notFound(),503)).to.be.false();
+            expect(Boom.isBoom(Boom.notFound(), 503)).to.be.false();
+            expect(Boom.isBoom(Boom10.notFound(), 503)).to.be.false();
+        });
+
+        it('works from legacy boom', () => {
+
+            expect(Boom10.isBoom(new Boom.Boom('oops'))).to.be.true();
+            expect(Boom10.isBoom(new Boom10.Boom('oops'))).to.be.true();
         });
     });
 
@@ -272,6 +289,23 @@ describe('Boom', () => {
             expect(boom.output.payload.message).to.equal('Hello: 123');
             expect(boom.output.statusCode).to.equal(400);
         });
+
+        it('works with legacy boom', () => {
+
+            const boom = Boom.boomify(new Boom10.Boom(null, { statusCode: 404 }), { statusCode: 501, message: 'Override' });
+
+            expect(boom.cause).to.be.undefined();
+            expect(boom.message).to.equal('Override: Not Found');
+            expect(boom.isServer).to.be.true();
+            expect(boom.output.statusCode).to.equal(501);
+
+            const boom10 = Boom10.boomify(new Boom.Boom(null, { statusCode: 404 }), { statusCode: 501, message: 'Override' });
+
+            expect(boom10.cause).to.be.undefined();
+            expect(boom10.message).to.equal('Override: Not Found');
+            expect(boom10.isServer).to.be.true();
+            expect(boom10.output.statusCode).to.equal(501);
+        });
     });
 
     describe('create()', () => {