diff --git a/src/tests/utils/mocks/MockKwinClient.ts b/src/tests/utils/mocks/MockKwinClient.ts
index 6655d76..59412c3 100644
--- a/src/tests/utils/mocks/MockKwinClient.ts
+++ b/src/tests/utils/mocks/MockKwinClient.ts
@@ -21,6 +21,8 @@ class MockKwinClient {
     public readonly popupWindow: boolean = false;
     public readonly pid = 1;
 
+    private _maximizedVertically: boolean = false;
+    private _maximizedHorizontally: boolean = false;
     private _fullScreen: boolean = false;
     public activities: string[] = [];
     public skipSwitcher: boolean = false;
@@ -58,6 +60,12 @@ class MockKwinClient {
     setMaximize(vertically: boolean, horizontally: boolean) {
         this.windowed = !(vertically || horizontally);
 
+        if (vertically === this._maximizedVertically && horizontally === this._maximizedHorizontally) {
+            return;
+        }
+        this._maximizedVertically = vertically;
+        this._maximizedHorizontally = horizontally;
+
         this.maximizedAboutToChange.fire(
             vertically ? (
                 horizontally ? MaximizedMode.Maximized : MaximizedMode.Vertically