diff --git a/test/watchCases/plugins/define-plugin/0/index.js b/test/watchCases/plugins/define-plugin/0/index.js
index f0b05c51d7c..182e0f038f8 100644
--- a/test/watchCases/plugins/define-plugin/0/index.js
+++ b/test/watchCases/plugins/define-plugin/0/index.js
@@ -1,15 +1,17 @@
 it("should be able to use dynamic defines in watch mode", function() {
 	const module = require("./module");
-	module.should.be.eql({
+	expect(module).toEqual({
 		default: WATCH_STEP,
-		type: "string"
+		type: "string",
+		[Symbol.toStringTag]: "Module"
 	});
 });
 
 it("should not update a define when dependencies list is missing", function() {
 	const module2 = require("./module2");
-	module2.should.be.eql({
+	expect(module2).toEqual({
 		default: "0",
-		type: "string"
+		type: "string",
+		[Symbol.toStringTag]: "Module"
 	});
 });