diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index 3dcb22c8400..cc532401b49 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -898,15 +898,9 @@ bool QGuiApplicationPrivate::isWindowBlocked(QWindow *window, QWindow **blocking
                         *blockingWindow = m;
                         return true;
                     }
-                    QWindow *p = m->parent();
-                    if (!p)
-                        p = m->transientParent();
-                    m = p;
+                    m = m->parent(QWindow::IncludeTransients);
                 } while (m);
-                QWindow *p = w->parent();
-                if (!p)
-                    p = w->transientParent();
-                w = p;
+                w = w->parent(QWindow::IncludeTransients);
             } while (w);
             break;
         }
diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index af4de687010..a075182969c 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -2225,15 +2225,9 @@ bool QApplicationPrivate::isWindowBlocked(QWindow *window, QWindow **blockingWin
                         *blockingWindow = m;
                         return true;
                     }
-                    QWindow *p = m->parent();
-                    if (!p)
-                        p = m->transientParent();
-                    m = p;
+                    m = m->parent(QWindow::IncludeTransients);
                 } while (m);
-                QWindow *p = w->parent();
-                if (!p)
-                    p = w->transientParent();
-                w = p;
+                w = w->parent(QWindow::IncludeTransients);
             } while (w);
             break;
         }