diff --git a/src/widgets/kernel/qtooltip.cpp b/src/widgets/kernel/qtooltip.cpp
index 51bf6e4684..2f99f8836a 100644
--- a/src/widgets/kernel/qtooltip.cpp
+++ b/src/widgets/kernel/qtooltip.cpp
@@ -336,6 +336,7 @@ bool QTipLabel::eventFilter(QObject *o, QEvent *e)
     case QEvent::FocusIn:
     case QEvent::FocusOut:
 #endif
+    case QEvent::Close: // For QTBUG-55523 (QQC) specifically: Hide tooltip when windows are closed
     case QEvent::MouseButtonPress:
     case QEvent::MouseButtonRelease:
     case QEvent::MouseButtonDblClick: