diff --git a/lib/Compiler.js b/lib/Compiler.js
index 58c30cf9911..d5f27fc0189 100644
--- a/lib/Compiler.js
+++ b/lib/Compiler.js
@@ -266,8 +266,8 @@ class Compiler {
 		/** @type {LoggingFunction | undefined} */
 		this.infrastructureLogger = undefined;
 
-		/** @type {PlatformTargetProperties} */
-		this.target = {
+		/** @type {Readonly<PlatformTargetProperties>} */
+		this.platform = {
 			web: null,
 			browser: null,
 			webworker: null,
@@ -313,20 +313,6 @@ class Compiler {
 		this._assetEmittingPreviousFiles = new Set();
 	}
 
-	/**
-	 * @returns {Readonly<PlatformTargetProperties>} platform target properties
-	 */
-	getPlatformTargetInfo() {
-		return this.target;
-	}
-
-	/**
-	 * @param {PlatformTargetProperties} platform platform target properties
-	 */
-	setPlatformTargetInfo(platform) {
-		this.target = platform;
-	}
-
 	/**
 	 * @param {string} name cache name
 	 * @returns {CacheFacade} the cache facade instance
diff --git a/lib/PlatformPlugin.js b/lib/PlatformPlugin.js
index d77ce370da8..ae601ae8b45 100644
--- a/lib/PlatformPlugin.js
+++ b/lib/PlatformPlugin.js
@@ -28,10 +28,10 @@ class PlatformPlugin {
 	 */
 	apply(compiler) {
 		compiler.hooks.environment.tap("PlatformPlugin", () => {
-			compiler.setPlatformTargetInfo({
-				...compiler.getPlatformTargetInfo(),
+			compiler.platform = {
+				...compiler.platform,
 				...this.platform
-			});
+			};
 		});
 	}
 }
diff --git a/lib/webpack.js b/lib/webpack.js
index e5ac2b0f1f8..faeb1624dc4 100644
--- a/lib/webpack.js
+++ b/lib/webpack.js
@@ -82,7 +82,7 @@ const createCompiler = rawOptions => {
 	const platform =
 		applyWebpackOptionsDefaultsAndResolvePlatformTargetProperties(options);
 	if (platform) {
-		compiler.setPlatformTargetInfo(platform);
+		compiler.platform = platform;
 	}
 	compiler.hooks.environment.call();
 	compiler.hooks.afterEnvironment.call();
diff --git a/test/Compiler.test.js b/test/Compiler.test.js
index c695f90b5a6..084ef30cd98 100644
--- a/test/Compiler.test.js
+++ b/test/Compiler.test.js
@@ -227,7 +227,7 @@ describe("Compiler", () => {
 			}
 		});
 		it("default platform info", done => {
-			const platform = compiler.getPlatformTargetInfo();
+			const platform = compiler.platform;
 			expect(platform.web).toBe(true);
 			expect(platform.node).toBe(false);
 			done();
@@ -306,7 +306,7 @@ describe("Compiler", () => {
 				new (require("../lib/PlatformPlugin"))({ node: true }),
 				compiler => {
 					compiler.hooks.afterEnvironment.tap("test", () => {
-						const platform = compiler.getPlatformTargetInfo();
+						const platform = compiler.platform;
 						expect(platform.node).toBe(true);
 						expect(platform.web).toBe(true);
 					});
diff --git a/types.d.ts b/types.d.ts
index 0a9eb2a478b..85a19592f34 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -2308,7 +2308,7 @@ declare class Compiler {
 	fsStartTime?: number;
 	resolverFactory: ResolverFactory;
 	infrastructureLogger?: (arg0: string, arg1: LogTypeEnum, arg2: any[]) => void;
-	target: PlatformTargetProperties;
+	platform: Readonly<PlatformTargetProperties>;
 	options: WebpackOptionsNormalized;
 	context: string;
 	requestShortener: RequestShortener;
@@ -2325,8 +2325,6 @@ declare class Compiler {
 	running: boolean;
 	idle: boolean;
 	watchMode: boolean;
-	getPlatformTargetInfo(): Readonly<PlatformTargetProperties>;
-	setPlatformTargetInfo(platform: PlatformTargetProperties): void;
 	getCache(name: string): CacheFacade;
 	getInfrastructureLogger(name: string | (() => string)): WebpackLogger;
 	watch(watchOptions: WatchOptions, handler: RunCallback<Stats>): Watching;