diff --git a/lib/util/data.ts b/lib/util/data.ts
index c49fa4956..b30ed1711 100644
--- a/lib/util/data.ts
+++ b/lib/util/data.ts
@@ -14,7 +14,7 @@ function load(): void {
 load();
 
 function joinPath(file: string): string {
-    return path.join(dataPath, file);
+    return path.resolve(dataPath, file);
 }
 
 function getPath(): string {
diff --git a/test/data.test.js b/test/data.test.js
index 877b249d6..ca7f958ca 100644
--- a/test/data.test.js
+++ b/test/data.test.js
@@ -19,6 +19,7 @@ describe('Data', () => {
             const actual = data.getPath();
             expect(actual).toBe(expected);
             expect(data.joinPath('test')).toStrictEqual(path.join(expected, 'test'));
+            expect(data.joinPath('/test')).toStrictEqual(path.resolve(expected, '/test'));
             delete process.env.ZIGBEE2MQTT_DATA;
             data.testingOnlyReload();
         });