diff --git a/libtaskmanager/tasksmodel.cpp b/libtaskmanager/tasksmodel.cpp
--- a/libtaskmanager/tasksmodel.cpp
+++ b/libtaskmanager/tasksmodel.cpp
@@ -897,7 +897,7 @@
             for (const QVariant &desktop : leftDesktops) {
                 const int desktopPos = virtualDesktopInfo->position(desktop);
 
-                if (desktopPos < leftDesktopPos) {
+                if (desktopPos <= leftDesktopPos) {
                     leftDesktop = desktop;
                     leftDesktopPos = desktopPos;
                 }
@@ -910,7 +910,7 @@
             for (const QVariant &desktop : rightDesktops) {
                 const int desktopPos = virtualDesktopInfo->position(desktop);
 
-                if (desktopPos < rightDesktopPos) {
+                if (desktopPos <= rightDesktopPos) {
                     rightDesktop = desktop;
                     rightDesktopPos = desktopPos;
                 }
@@ -923,8 +923,6 @@
             } else if (leftDesktop.isNull() && !rightDesktop.isNull()) {
                 return true;
             }
-
-            return false;
         }
         case SortActivity: {
             // updateActivityTaskCounts() counts the number of window tasks on each