diff --git a/lib/lbt/analyzer/analyzeLibraryJS.js b/lib/lbt/analyzer/analyzeLibraryJS.js
index cfca2948f..2e739c7f6 100644
--- a/lib/lbt/analyzer/analyzeLibraryJS.js
+++ b/lib/lbt/analyzer/analyzeLibraryJS.js
@@ -1,6 +1,7 @@
 "use strict";
 const {parseJS, Syntax, VisitorKeys} = require("../utils/parseUtils");
 const {getPropertyKey, isMethodCall, isIdentifier, getStringArray} = require("../utils/ASTUtils");
+const log = require("@ui5/logger").getLogger("lbt:analyzer:LibraryJS");
 
 const CALL__SAP_UI_GETCORE = ["sap", "ui", "getCore"];
 
@@ -38,8 +39,12 @@ async function analyze(resource) {
 					libInfo.controls = getStringArray(value, true);
 				} else if ( key === "elements" && value.type == Syntax.ArrayExpression ) {
 					libInfo.elements = getStringArray(value, true);
+				} else if ( key === "dependencies" || key === "extensions" || key === "name" || key === "version" ) {
+					// do nothing, for all other supported properties
 				} else {
-					// TODO: Maybe log an error/warning when unexpected properties are defined?
+					log.error(
+						`Unexpected property: '${key}' in sap.ui.getCore().initLibrary call in '${resource.getPath()}'`
+					);
 				}
 			});
 
diff --git a/test/lib/lbt/analyzer/analyzeLibraryJS.js b/test/lib/lbt/analyzer/analyzeLibraryJS.js
new file mode 100644
index 000000000..6d3d5184e
--- /dev/null
+++ b/test/lib/lbt/analyzer/analyzeLibraryJS.js
@@ -0,0 +1,78 @@
+const test = require("ava");
+const sinon = require("sinon");
+const mock = require("mock-require");
+
+function createMockResource(content, path) {
+	return {
+		async getBuffer() {
+			return content;
+		},
+		getPath() {
+			return path;
+		}
+	};
+}
+
+test("analyze: library.js with non supported property", async (t) => {
+	const libraryJS = `sap.ui.define([
+       'sap/ui/core/Core',
+   ], function(Core) {
+
+       "use strict";
+
+       sap.ui.getCore().initLibrary({
+           name : "library.test",
+		   version: "1.0.0",
+		   customProperty1: "UI5",
+		   dependencies : ["sap.ui.core"],
+		   types: [
+			   "library.test.ButtonType",
+			   "library.test.DialogType",
+		   ],
+		   interfaces: [
+			   "library.test.IContent",
+		   ],
+		   controls: [
+			   "library.test.Button",
+			   "library.test.CheckBox",
+			   "library.test.Dialog",
+			   "library.test.Input",
+			   "library.test.Label",
+			   "library.test.Link",
+			   "library.test.Menu",
+			   "library.test.Text"
+		   ],
+		   elements: [
+			   "library.test.MenuItem"
+		   ],
+		   extensions: {
+			   customExtension: "UI5"
+		   },
+           customProperty2: "UI5"
+       });
+
+       return thisLib;
+
+   });`;
+
+	const librayJSPath = "library/test/library.js";
+	const logger = require("@ui5/logger");
+	const errorLogStub = sinon.stub();
+	const myLoggerInstance = {
+		error: errorLogStub
+	};
+	sinon.stub(logger, "getLogger").returns(myLoggerInstance);
+	const analyzeLibraryJSWithStubbedLogger = mock.reRequire("../../../../lib/lbt/analyzer/analyzeLibraryJS");
+
+	const mockResource = createMockResource(libraryJS, librayJSPath);
+
+	await analyzeLibraryJSWithStubbedLogger(mockResource);
+
+	t.is(errorLogStub.callCount, 2, "Error log is called twice");
+	t.is(errorLogStub.getCall(0).args[0],
+		"Unexpected property: 'customProperty1' in sap.ui.getCore().initLibrary call in 'library/test/library.js'",
+		"The error log message of the first call is correct");
+	t.is(errorLogStub.getCall(1).args[0],
+		"Unexpected property: 'customProperty2' in sap.ui.getCore().initLibrary call in 'library/test/library.js'",
+		"The error log message of the first call is correct");
+});