diff --git a/src/extern/kwin.d.ts b/src/extern/kwin.d.ts
index 628bca6..612a7b8 100644
--- a/src/extern/kwin.d.ts
+++ b/src/extern/kwin.d.ts
@@ -5,7 +5,7 @@ declare const KWin: {
 
 declare const Workspace: {
     readonly desktops: number;
-    readonly currentDesktop: number;
+    readonly currentDesktop: KwinDesktop;
     readonly currentActivity: string;
     readonly windows: KwinClient[];
 
@@ -50,7 +50,6 @@ interface KwinClient {
     readonly normalWindow: boolean;
     readonly managed: boolean;
 
-    opacity: number;
     fullScreen: boolean;
     activities: string[]; // empty array means all activities
     skipSwitcher: boolean;
@@ -59,7 +58,7 @@ interface KwinClient {
     shade: boolean;
     minimized: boolean;
     frameGeometry: QmlRect;
-    desktop: number; // -1 means all desktops // TODO: Replace with desktops
+    desktops: KwinDesktop[]; // TODO: is empty = all desktops?
     tile: Tile;
     opacity: number;
 
@@ -77,3 +76,7 @@ interface KwinClient {
 
     setMaximize(vertically: boolean, horizontally: boolean): void;
 }
+
+interface KwinDesktop {
+    readonly id: string;
+}