diff --git a/application/MainWindow.cpp b/application/MainWindow.cpp
index f144fcbd..5880762a 100644
--- a/application/MainWindow.cpp
+++ b/application/MainWindow.cpp
@@ -1245,16 +1245,20 @@ void MainWindow::setCatBackground(bool enabled)
 {
     if (enabled)
     {
-        view->setStyleSheet(R"(
+        QDateTime now = QDateTime::currentDateTime();
+        QDateTime xmas(QDate(now.date().year(), 12, 25), QTime(0, 0));
+        ;
+        QString cat = (abs(now.daysTo(xmas)) <= 4) ? "catmas" : "kitteh";
+        view->setStyleSheet(QString(R"(
 GroupView
 {
-    background-image: url(:/backgrounds/kitteh);
+    background-image: url(:/backgrounds/%1);
     background-attachment: fixed;
     background-clip: padding;
     background-position: top right;
     background-repeat: none;
     background-color:palette(base);
-})");
+})").arg(cat));
     }
     else
     {
diff --git a/application/resources/backgrounds/backgrounds.qrc b/application/resources/backgrounds/backgrounds.qrc
index 55de139e..83505635 100644
--- a/application/resources/backgrounds/backgrounds.qrc
+++ b/application/resources/backgrounds/backgrounds.qrc
@@ -2,5 +2,6 @@
 <RCC version="1.0">
     <qresource prefix="/backgrounds">
         <file alias="kitteh">catbgrnd2.png</file>
+        <file alias="catmas">catmas.png</file>
     </qresource>
 </RCC>
diff --git a/application/resources/backgrounds/catmas.png b/application/resources/backgrounds/catmas.png
new file mode 100644
index 00000000..cca96c63
Binary files /dev/null and b/application/resources/backgrounds/catmas.png differ