diff --git a/src/extern/kwin.d.ts b/src/extern/kwin.d.ts
index bca0f76..1f756e9 100644
--- a/src/extern/kwin.d.ts
+++ b/src/extern/kwin.d.ts
@@ -60,7 +60,7 @@ interface KwinClient {
     shade: boolean;
     minimized: boolean;
     frameGeometry: QmlRect;
-    desktops: KwinDesktop[]; // TODO: is empty = all desktops?
+    desktops: KwinDesktop[]; // empty array means all desktops
     tile: Tile;
     opacity: number;
 
diff --git a/src/world/Clients.ts b/src/world/Clients.ts
index 9904c78..c69f0e4 100644
--- a/src/world/Clients.ts
+++ b/src/world/Clients.ts
@@ -21,7 +21,7 @@ namespace Clients {
 
     export function getKwinDesktopApprox(kwinClient: KwinClient) {
         switch (kwinClient.desktops.length) {
-            case 0: // TODO: is empty = all desktops?
+            case 0:
                 return Workspace.currentDesktop;
             case 1:
                 return kwinClient.desktops[0];
@@ -45,10 +45,10 @@ namespace Clients {
     }
 
     export function isOnVirtualDesktop(kwinClient: KwinClient, kwinDesktop: KwinDesktop) {
-        return kwinClient.desktops.length === 0 || kwinClient.desktops.includes(kwinDesktop); // TODO: is empty = all desktops?
+        return kwinClient.desktops.length === 0 || kwinClient.desktops.includes(kwinDesktop);
     }
 
     export function isOnOneOfVirtualDesktops(kwinClient: KwinClient, kwinDesktops: KwinDesktop[]) {
-        return kwinClient.desktops.length === 0 || kwinClient.desktops.some(d => kwinDesktops.includes(d)); // TODO: is empty = all desktops?
+        return kwinClient.desktops.length === 0 || kwinClient.desktops.some(d => kwinDesktops.includes(d));
     }
 }
diff --git a/src/world/DesktopManager.ts b/src/world/DesktopManager.ts
index 1a6b88e..2f0c54c 100644
--- a/src/world/DesktopManager.ts
+++ b/src/world/DesktopManager.ts
@@ -71,7 +71,7 @@ class DesktopManager {
     public *getDesktopsForClient(kwinClient: KwinClient) {
         // TODO: call `getDesktops` when Qt bug is fixed
         const clientActivities = kwinClient.activities.length > 0 ? kwinClient.activities : this.kwinActivities.keys();
-        const clientDesktops = kwinClient.desktops.length > 0 ? kwinClient.desktops : this.kwinDesktops.keys(); // TODO: is empty = all desktops?
+        const clientDesktops = kwinClient.desktops.length > 0 ? kwinClient.desktops : this.kwinDesktops.keys();
         for (const clientActivity of clientActivities) {
             for (const clientDesktop of clientDesktops) {
                 yield this.getDesktop(clientActivity, clientDesktop);
diff --git a/src/world/clientState/Pinned.ts b/src/world/clientState/Pinned.ts
index 22a0b8f..83c41d0 100644
--- a/src/world/clientState/Pinned.ts
+++ b/src/world/clientState/Pinned.ts
@@ -63,7 +63,7 @@ namespace ClientState {
             });
 
             manager.connect(kwinClient.desktopsChanged, () => {
-                const changedDesktops = oldDesktops.length === 0 || kwinClient.desktops.length === 0 ? // TODO: is empty = all desktops?
+                const changedDesktops = oldDesktops.length === 0 || kwinClient.desktops.length === 0 ?
                     [] :
                     union(oldDesktops, kwinClient.desktops);
                 world.do((clientManager, desktopManager) => {
@@ -79,7 +79,7 @@ namespace ClientState {
                     [] :
                     union(oldActivities, kwinClient.activities);
                 world.do((clientManager, desktopManager) => {
-                    for (const desktop of desktopManager.getDesktops(changedActivities, kwinClient.desktops)) { // TODO: is empty = all desktops?
+                    for (const desktop of desktopManager.getDesktops(changedActivities, kwinClient.desktops)) {
                         desktop.onPinsChanged();
                     }
                 });