diff --git a/lib/node/NodeWatchFileSystem.js b/lib/node/NodeWatchFileSystem.js
index d2acc3136..316dacb5f 100644
--- a/lib/node/NodeWatchFileSystem.js
+++ b/lib/node/NodeWatchFileSystem.js
@@ -28,7 +28,7 @@ class NodeWatchFileSystem {
 
 	/**
 	 * @param {Iterable<string>} files watched files
-	 * @param {Iterable<string>} dirs watched directories
+	 * @param {Iterable<string>} directories watched directories
 	 * @param {Iterable<string>} missing watched exitance entries
 	 * @param {number} startTime timestamp of start time
 	 * @param {TODO} options options object
@@ -36,12 +36,20 @@ class NodeWatchFileSystem {
 	 * @param {function(string, number): void} callbackUndelayed callback when the first change was detected
 	 * @returns {Watcher} a watcher
 	 */
-	watch(files, dirs, missing, startTime, options, callback, callbackUndelayed) {
+	watch(
+		files,
+		directories,
+		missing,
+		startTime,
+		options,
+		callback,
+		callbackUndelayed
+	) {
 		if (!files || typeof files[Symbol.iterator] !== "function") {
 			throw new Error("Invalid arguments: 'files'");
 		}
-		if (!dirs || typeof dirs[Symbol.iterator] !== "function") {
-			throw new Error("Invalid arguments: 'dirs'");
+		if (!directories || typeof directories[Symbol.iterator] !== "function") {
+			throw new Error("Invalid arguments: 'directories'");
 		}
 		if (!missing || typeof missing[Symbol.iterator] !== "function") {
 			throw new Error("Invalid arguments: 'missing'");
@@ -77,10 +85,7 @@ class NodeWatchFileSystem {
 			callback(null, times, times, changes, removals);
 		});
 
-		const filesSet = new Set(files);
-		for (const item of missing) filesSet.add(item);
-
-		this.watcher.watch(filesSet, dirs, startTime);
+		this.watcher.watch({ files, directories, missing, startTime });
 
 		if (oldWatcher) {
 			oldWatcher.close();
diff --git a/package.json b/package.json
index 912192430..81f1f6d3d 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "schema-utils": "^2.5.0",
     "tapable": "2.0.0-beta.8",
     "terser-webpack-plugin": "^2.2.1",
-    "watchpack": "2.0.0-beta.9",
+    "watchpack": "2.0.0-beta.10",
     "webpack-sources": "2.0.0-beta.7"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index d829e43b6..ce9925d7d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6531,10 +6531,10 @@ wast-loader@^1.5.5:
   dependencies:
     wabt "1.0.0-nightly.20180421"
 
-watchpack@2.0.0-beta.9:
-  version "2.0.0-beta.9"
-  resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-2.0.0-beta.9.tgz#c9a2d25af677203c5a0727803d72239d8f60499d"
-  integrity sha512-tk6i7Mh7zt4Z6c7Pa7PBMRPM04es+1KB2JITgR0O/SZLKnCbT05u/B53WJp+FcPZLes3HQZ1d27fYy6FRFYb5Q==
+watchpack@2.0.0-beta.10:
+  version "2.0.0-beta.10"
+  resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-2.0.0-beta.10.tgz#6e4a5b16bda08a5a3ce9851f166a45a8860066bb"
+  integrity sha512-JR/S6jbW/hC+xAHG+AxZjkIH/yCxC/yQfCJT8FnZDrZf//tCd6O3wtcEuCkgFmWVERC2IdnlYvmzwa1RJJKg0A==
   dependencies:
     glob-to-regexp "^0.4.1"
     graceful-fs "^4.1.2"